Editing Sum 41 (section)

==History==

===1994–1998: Formative years===
Sum 41 has its origins in the band Kaspir, which was formed by [[Deryck Whibley]] and Grant McVittie in 1994, inspired by [[Weezer]] and [[Nirvana (band)|Nirvana]]. As time went on, the band's drummer was replaced by [[Steve Jocz]] and the music became increasingly inspired by [[NOFX]], particularly their 1991 album ''[[Ribbed]]''. Seeing this change as too sonically dissimilar to their original sound, they decided to form a new band and to change their sound because they sounded "like the early nineties rock music we used to listen to, and don't anymore".<ref name=":0">{{Cite book|last=Whibley|first=Deryck|title=Walking Disaster|publisher=[[Gallery Books]]|year=2024|isbn=9781408719732|location=New York|language=en}}</ref><ref name="99.9 Radio">{{cite AV media|people=[[Steve Jocz]]|date=October 11, 2023|title=Steve Jocz Aka Stevo Of Sum 41 Interview On 99.9 Punk World Radio FM (1st Interview In 10 Years)|type=Radio interview|url=https://www.youtube.com/watch?v=Ih2e_XeoOQs|access-date=October 29, 2023|time=2m–7m|publisher=99.9 Punk World Radio FM}}</ref> The band chose the name "Sum 41" after looking at the calendar and counting how many days it had been from the start of their summer break to the day the [[Warped Tour 1996|Warped Tour]] was on and seeing that it was forty-one days.<ref name=":0" /> The band debuted its new name during [[Battle of the Bands|Supernova's Battle of the Bands]] on September 28, 1996.<ref name=":0" /><ref name="Exclaim Gormely">{{cite web|first=Ian|last=Gormely|url=https://exclaim.ca/music/article/sum_41_survive_teen_stardom_substance_abuse_and_changing_tastes_to_rise_again_on_out_for_blood|title=Sum 41 Survive Teen Stardom, Substance Abuse and Changing Tastes to Rise Again on 'Out for Blood'|work=[[Exclaim!]]|date=July 12, 2019|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230412015924/https://exclaim.ca/music/article/sum_41_survive_teen_stardom_substance_abuse_and_changing_tastes_to_rise_again_on_out_for_blood|archive-date=April 12, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Sam|last=Coare|url=https://www.kerrang.com/the-rise-of-sum-41-as-told-through-their-most-important-gigs-deryck-whibley-interview-download-festival|title=The rise of Sum 41, as told through their most important gigs|magazine=[[Kerrang!]]|date=June 5, 2024|access-date=October 19, 2024|archive-url=https://web.archive.org/web/20240605113349/https://www.kerrang.com/the-rise-of-sum-41-as-told-through-their-most-important-gigs-deryck-whibley-interview-download-festival|archive-date=June 5, 2024|url-status=live}}</ref> The first lineup to use this name included Whibley, Jocz, McVittie and Jon Marshall.<ref name="99.9 Radio" /> Another early member was bassist Richard Roy who shortly replaced McVittie.<ref name="auto"/>

Their first televised live performance was at ''Jonopalooza'', on the Canadian teen talk show [[Jonovision]] hosted by [[Trailer Park Boys]] star, and Canadian comedian, [[Jonathan Torrens]].<ref>{{cite web|first=Justin|last=Crowe|url=https://screenrant.com/trailer-park-boys-behind-the-scenes-facts/#jonathan-torrens-hosted-his-own-talk-show|title=It's Not Rocket Appliances: 10 Hilarious Trailer Park Boys Behind-The-Scenes Facts Most Fans Didn't Know|work=[[Screen Rant]]|date=March 3, 2021|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230926214513/https://screenrant.com/trailer-park-boys-behind-the-scenes-facts/#jonathan-torrens-hosted-his-own-talk-show|archive-date=September 26, 2023|url-status=live}}</ref>

The band met their manager and producer [[Greig Nori]], also the lead vocalist of the band [[Treble Charger]], in 1996 at Jonopalooza,<ref name="Exclaim Gormely"/> and Whibley convinced Nori to watch his band perform.<ref name="Exclaim Gormely"/>  Nori was not impressed with the band's songs or the original vocalist Jon Marshall and advised Whibley to be the vocalist instead causing Marshall to leave.<ref name="auto"/><ref name="Exclaim Gormely"/>  With Whibley moving to lead vocals and rhythm guitar, [[Dave Baksh]], a friend of Deryck and Steve and fellow student at Exeter High School, joined as lead guitarist.<ref name="auto"/> During the band's first tour in [[New Brunswick]], the band was involved in a near-fatal car accident, when their [[Ford E-Series|Ford Econoline]] [[van]] was [[Side collision|broadsided]] by an [[Ford F-Series|F-150]]; Roy, who was driving the van, quit the band after returning home.<ref name="auto"/><ref name="stevo accident">{{Cite web|url=https://www.youtube.com/watch?v=UbPwG8Vrtbo|title=Sum 41's First Tour Was A DISASTER!|date=August 7, 2024|via=YouTube}}</ref> [[Mark Spicoluk]] briefly filled in as the band's new bassist in 1998, until he was replaced by [[Jason McCaslin]], another friend of the band's and student at Exeter High School, in 1999.<ref>{{cite web|url=https://www.youtube.com/watch?v=zd4zA1P_C1E|title=Sum 41 Studio Update 18|date=February 18, 2010|access-date=March 26, 2022|archive-url=https://ghostarchive.org/varchive/youtube/20211102/zd4zA1P_C1E|archive-date=November 3, 2021|url-status=live|publisher=YouTube }}{{cbignore}}</ref><ref>{{Cite AV media |url=https://www.youtube.com/watch?v=UbPwG8Vrtbo |title=Early Sum 41 History! 1st Tour! Summer! |date=2024-08-07 |last=((Stevo32Drums)) |access-date=2024-08-07 |via=YouTube}} Event occurs from 5:51 to 6:19.</ref> In 1996, the band opened for [[Len (band)|Len]].<ref name="Exclaim Gormely"/>

===1998–2000: ''Half Hour of Power''===
{{Main|Half Hour of Power}}
In 1998, the band recorded a demo tape on [[compact cassette]] which they sent to record companies in the hope of getting a recording contract.<ref name="Exclaim Gormely"/>

From 1999 to 2000, the band recorded several new songs.<ref name="sonic1029">{{cite web|url=https://www.sonic1029.com/2017/11/24/look-infected-turns-15/|title=Does This Look Infected? Turns 15|work=Sonic1029|date=November 24, 2017|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230415160940/https://www.sonic1029.com/2017/11/24/look-infected-turns-15/|archive-date=April 15, 2023|url-status=dead}}</ref><ref name="Sum 41 Plan DVD">{{cite web|first=Jon|last=Wiederhorn|url=http://www.mtv.com/news/1452491/sum-41-plan-dvd-live-b-sides-monthlong-tour/|title=Sum 41 Plan DVD, Live B-Sides, Monthlong Tour|work=[[MTV]]|date=February 21, 2002|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230424125846/https://www.mtv.com/news/qsy4zn/sum-41-plan-dvd-live-b-sides-monthlong-tour|archive-date=April 24, 2023|url-status=dead}}</ref> The ''[[Introduction to Destruction]]'' and later the ''[[Cross The T's and Gouge Your I's]]'' DVDs both contain the self-recorded footage, which show the band performing a dance to "[[Makes No Difference]]" in front of a theatre.<ref name="sonic1029"/><ref name="Sum 41 Plan DVD"/>

After signing with [[Island Records]] in 1999, Sum 41's first EP, ''[[Half Hour of Power]]'', was released on June 27, 2000.<ref>{{cite web|first=Curtis|last=Zimmermann|url=https://www.allmusic.com/album/half-hour-of-power-mw0000066795|title=Sum 41 Half Hour of Power|work=[[AllMusic]]|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20210309062856/https://www.allmusic.com/album/half-hour-of-power-mw0000066795|archive-date=March 9, 2021|url-status=live}}</ref> The first [[single (music)|single]] released by the band was "[[Makes No Difference]]", which had two different [[music video]]s.<ref>{{cite web|url=http://www.mtv.com/bands/archive/s/sum41_01_7q/index.jhtml|title=7 Questions with Sum41|work=[[MTV]]|access-date=February 21, 2011|archive-url=https://web.archive.org/web/20101224020529/http://www.mtv.com/bands/archive/s/sum41_01_7q/index.jhtml|archive-date=December 24, 2010|url-status=dead}}</ref> The first video was put together using the video clips sent to the major label, and the second showed the band performing at a house party.<ref>{{cite web|url=http://www.mtv.com/artists/sum-41/biography|title=Sum 41 Bio|year=2007|work=[[MTV]]|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20130510193953/http://www.mtv.com/artists/sum-41/biography/|archive-date=May 10, 2013|url-status=dead}}</ref> The album was certified platinum in Canada.<ref>{{cite web|url=https://www.cbc.ca/music/how-canada-helped-shape-pop-punk-1.6408797|title=How Canada helped shape pop-punk|work=[[Canadian Broadcasting Corporation|CBC]]|date=April 11, 2022|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230509171324/https://www.cbc.ca/music/how-canada-helped-shape-pop-punk-1.6408797|archive-date=May 9, 2023|url-status=live}}</ref>

===2001–2003: ''All Killer No Filler'' and ''Does This Look Infected?''===
{{Main|All Killer No Filler|Does This Look Infected?}}

Sum 41's first full-length album, ''[[All Killer No Filler]]'', was released on May 8, 2001.<ref name="AM All Killer No Filler">{{cite web|first=Jason|last=Birchmeier|url=https://www.allmusic.com/album/all-killer-no-filler-mw0000003255|title=All Killer, No Filler – Sum 41|work=[[AllMusic]]|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20230404160627/https://www.allmusic.com/album/all-killer-no-filler-mw0000003255|archive-date=April 4, 2023|url-status=live}}</ref><ref>{{cite web|first=Philip|last=Trapp|url=https://loudwire.com/sum-41-deryck-whibley-all-killer-wasnt-that-great/|title=Sum 41's Deryck Whibley Doesn't Think 'All Killer No Filler' Was 'Very Good'|work=[[Loudwire]]|date=April 8, 2021|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20230608064953/https://loudwire.com/sum-41-deryck-whibley-all-killer-wasnt-that-great/|archive-date=June 8, 2023|url-status=live}}</ref> The album was very successful; it was certified platinum by the [[Recording Industry Association of America]] in August 2001.{{Certification Cite Ref|artist=Sum 41|type=album|region=United States|title=All Killer No Filler}} "[[Fat Lip]]", the album's first single,<ref name="Allmusic overview">{{cite web|first=Johnny|last=Loftus|url=https://www.allmusic.com/artist/sum-41-mn0000585574/biography|title=Sum 41 Biography & History|work=[[AllMusic]]|access-date=August 17, 2008|archive-url=https://web.archive.org/web/20230405102155/https://www.allmusic.com/artist/sum-41-mn0000585574/biography|archive-date=April 5, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Tyler|last=Sharp|url=http://www.altpress.com/news/entry/sum_41s_fat_lip_turns_15|title=Sum 41's "Fat Lip" turns 15|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=April 22, 2016|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20160422191152/http://www.altpress.com/news/entry/sum_41s_fat_lip_turns_15|archive-date=April 22, 2016|url-status=dead}}</ref><ref>{{cite magazine|first=Tyler|last=Sharp|url=http://www.altpress.com/news/entry/sum_41s_fat_lip_turns_15|title=Sum 41's "Fat Lip" turns 15|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=April 22, 2016|access-date=April 22, 2016|archive-url=https://web.archive.org/web/20160422191152/http://www.altpress.com/news/entry/sum_41s_fat_lip_turns_15|archive-date=April 22, 2016|url-status=dead}}</ref> achieved significant chart and commercial success; it topped the US [[Alternative Songs|''Billboard'' Modern Rock Tracks]] chart as well as many other charts around the world.<ref name="Artists Chart History">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/|title=Fat Lip – Sum 41|magazine=[[Billboard (magazine)|Billboard]]|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20230406231821/https://www.billboard.com/artist/sum-41/chart-history/|archive-date=April 6, 2023|url-status=live}}</ref> The song remains the band's most successful to date. After "Fat Lip", two more singles were released from the album: "[[In Too Deep (Sum 41)|In Too Deep]]" and "[[Motivation (Sum 41 song)|Motivation]]".<ref name="Allmusic overview"/><ref name="AM All Killer No Filler"/><ref>{{cite web|first=Sara|last=Murphy|url=https://exclaim.ca/music/article/sum_41s_in_too_deep_was_originally_a_reggae_collab_between_treble_charger_and_snow|title=Sum 41's "In Too Deep" Was Nearly a Reggae Song with Treble Charger and Snow|work=[[Exclaim!]]|date=March 8, 2018|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20190712155419/https://exclaim.ca/music/article/sum_41s_in_too_deep_was_originally_a_reggae_collab_between_treble_charger_and_snow|archive-date=July 12, 2019|url-status=live}}</ref> "In Too Deep" peaked at number 10 on the Modern Rock Tracks chart, while "Motivation" peaked at number 24 on the same chart.<ref name="Sum 41 Billboard">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/mrt/|title=Sum 41 Chart history|magazine=[[Billboard (magazine)|Billboard]]|access-date=February 12, 2018|archive-url=https://web.archive.org/web/20220428164102/https://www.billboard.com/artist/sum-41/chart-history/mrt/|archive-date=April 28, 2022|url-status=live}}</ref> The album peaked at number 13 on the [[Billboard 200|''Billboard'' 200]] chart and at number nine on the [[Top Canadian Albums]] chart.<ref name="All Killer No Filler Billboard 200">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/cna/|title=Sum 41 All Killer No Filler|magazine=[[Billboard (magazine)|Billboard]]|access-date=February 12, 2018|archive-url=https://web.archive.org/web/20211124133939/https://www.billboard.com/artist/sum-41/chart-history/cna/|archive-date=November 24, 2021|url-status=live}}</ref> The album was a commercial success, and was certified [[RIAA certification|Platinum]] in the United States, UK, and triple platinum in Canada<ref>{{cite magazine|first=Gavin|last=Edwards|url=https://www.rollingstone.com/artists/sum41/articles/story/5918959/people_of_the_year_2001_sum_41|title=People of the Year 2001: Sum 69|magazine=[[Rolling Stone]]|date=December 17, 2001|access-date=August 19, 2008|archive-url=https://web.archive.org/web/20090211183220/http://www.rollingstone.com/artists/sum41/articles/story/5918959/people_of_the_year_2001_sum_41|archive-date=February 11, 2009|url-status=dead}}</ref><ref>{{cite web|first=Adria|last=Young|url=https://www.vice.com/en/article/retrospective-reviews-sum-41s-all-killer-no-filler/|title=SRetrospective Reviews: Sum 41's "All Killer No Filler"|work=[[Vice Media|Vice]]|date=May 8, 2014|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20201029144327/https://www.vice.com/en/article/rzejg3/retrospective-reviews-sum-41s-all-killer-no-filler|archive-date=October 29, 2020|url-status=live}}</ref> The album's name was taken from the initial reaction from Joe Mcgrath, an engineer working in the studio.<ref>{{Citation|url=https://www.youtube.com/watch?v=BA0lcNY6wt8|title=Sum 41 - Wikipedia: Fact or Fiction?|work=Loudwire|date=November 2, 2016|access-date=March 27, 2022|archive-url=https://ghostarchive.org/varchive/youtube/20211102/BA0lcNY6wt8|archive-date=November 3, 2021|url-status=live}}{{cbignore}}</ref>

The band spent much of 2001 touring; the group played over 300 concerts that year before returning to the studio to record another album.<ref name="Sum Like it Loud Tour">{{cite web|first=Jon|last=Wiederhorn|url=http://www.mtv.com/news/articles/1452491/20020221/sum_41.jhtml|title=Sum 41 Plan DVD, Live B-Sides, Monthlong Tour|work=[[MTV]]|date=February 21, 2002|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20040510164839/http://www.mtv.com/news/articles/1452491/20020221/sum_41.jhtml|archive-date=May 10, 2004|url-status=dead}}</ref> The band took part in the 2001 Vans Warped Tour<ref name="Vans Warped Tour 2001">{{cite web|first=Lydia|last=Pudzianowski|url=https://www.popmatters.com/sum-41-all-killer-no-filler|title=20 Years On, Sum 41's 'All Killer No Filler' Is a Classic Pop-Punk Party|work=[[PopMatters]]|date=May 7, 2021|access-date=April 3, 2022|archive-url=https://web.archive.org/web/20210507133533/https://www.popmatters.com/sum-41-all-killer-no-filler|archive-date=May 7, 2021|url-status=live}}</ref> and the Campus Invasion Tour.<ref name="Campus Invasion Tour 2001">{{cite magazine|url=https://www.billboard.com/music/music-news/mtv-tour-sends-american-hi-fi-back-to-campus-80216/|title=MTV Tour Sends American Hi-Fi Back To Campus|magazine=[[Billboard (magazine)|Billboard]]|date=March 30, 2001|access-date=April 3, 2022|archive-url=https://web.archive.org/web/20220404023442/https://www.billboard.com/music/music-news/mtv-tour-sends-american-hi-fi-back-to-campus-80216/|archive-date=April 4, 2022|url-status=live}}</ref> In April 2002, the band went on a month long tour called the ''Sum Like it Loud Tour''.<ref name="Sum Like it Loud Tour"/>

On May 3, 2002, [[Spider-Man (2002 film)|Spider-Man]] was released in theaters which featured an extended version of the song from Sum 41's first album "Half Hour of Power" called  "[[What We're All About]]",<ref>{{cite magazine|first=Tom|last=Sinclair|url=https://ew.com/article/2002/03/28/see-wholl-be-spider-man-soundtrack/|title=See who'll be on the ''Spider-Man'' soundtrack|magazine=[[Entertainment Weekly]]|date=March 28, 2002|access-date=September 27, 2023|archive-url=https://web.archive.org/web/20220810053052/https://ew.com/article/2002/03/28/see-wholl-be-spider-man-soundtrack/|archive-date=August 10, 2022|url-status=live}}</ref> which in the album was combined with another short song called "Dave's Possessed Hair". The song was listed on the album as "Dave's Possessed Hair/It's What We're All About".<ref name=Half>{{cite web|first=Curtis|last=Zimmermann|url=https://www.allmusic.com/album/half-hour-of-power-mw0000066795|title=Half Hour of Power – Sum 41|work=[[AllMusic]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20120622144915/https://www.allmusic.com/album/half-hour-of-power-mw0000066795|archive-date=June 22, 2012|url-status=live}}</ref>

In October 2002, the band went on a month long tour called the ''Sum on Your Face Tour''.<ref name="Sum on Your Face Tour">{{cite web|first=Jon|last=Wiederhorn|url=https://www.mtv.com/news/1458210/sum-41-ready-for-intimate-sum-on-your-face-tour/|title=Sum 41 Ready For Intimate Sum On Your Face Tour|work=[[MTV]]|date=October 18, 2002|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20181105005617/https://www.mtv.com/news/1458210/sum-41-ready-for-intimate-sum-on-your-face-tour/|archive-date=November 5, 2018|url-status=dead}}</ref> On November 26, 2002, the group released its second album, ''[[Does This Look Infected?]]''<ref name="Metal">{{cite web|first=Joe|last=D'Angelo|url=https://www.mtv.com/news/cslsh8/sum-41-ask-does-this-look-infected|title=Sum 41 Ask, Does This Look Infected?|work=[[MTV]]|date=September 13, 2002|access-date=October 20, 2008|archive-url=https://web.archive.org/web/20230130055508/https://www.mtv.com/news/cslsh8/sum-41-ask-does-this-look-infected|archive-date=January 30, 2023|url-status=dead}}</ref><ref>{{cite magazine|first=Karen|last=Bliss|url=https://www.rollingstone.com/music/music-news/sum-41-get-infected-244560/|title=Sum 41 Get Infected|magazine=[[Rolling Stone]]|date=October 3, 2002|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20180711091425/https://www.rollingstone.com/music/music-news/sum-41-get-infected-244560/|archive-date=July 11, 2018|url-status=dead}}</ref> The special edition came with a DVD, ''Cross The T's and Gouge Your I's''. Whibley said of the album: "We don't want to make another record that sounds like the last record, I hate when bands repeat albums."<ref>{{cite book|last=Edwards|first=Gavin|title=Canadian Teenage Rock and Roll Machine.|editor=[[Rolling Stone]]|publisher=Wenner Media|date=October 11, 2001|page=50}}</ref> The album featured a harder and edgier sound, and the lyrics featured a more serious outlook.<ref>{{cite web|first=Stuart|last=Green|url=http://exclaim.ca/music/article/sum_41-does_this_look_infected|title=Sum 41 Does This Look Infected?|work=[[Exclaim!]]|date=February 1, 2003|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20151222153618/http://exclaim.ca/music/article/sum_41-does_this_look_infected|archive-date=December 22, 2015|url-status=live}}</ref> The album peaked at number 32 on the ''Billboard'' 200 chart and at number eight on the Top Canadian Albums chart.<ref>{{cite web|first=Chad|last=Childers|url=https://loudwire.com/sum-41-does-this-look-infected-15th-anniversary-tour/|title=Sum 41 to Revisit 'Does This Look Infected?' for 15th Anniversary Tour|work=[[Loudwire]]|date=February 13, 2018|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20180216034637/https://loudwire.com/sum-41-does-this-look-infected-15th-anniversary-tour/|archive-date=February 16, 2018|url-status=live}}</ref> It was certified Platinum in Canada and gold in the United States.<ref>{{cite web|url=https://musiccanada.com/gold-platinum/?_gp_search=Does+This+Look+Infected%3F%20Sum+41|title=Canadian album certifications – Sum 41 – Does This Look Infected?|work=[[Music Canada]]|date=December 18, 2002|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20220829121800/https://musiccanada.com/gold-platinum/?_gp_search=Does+This+Look+Infected%3F%20Sum+41|archive-date=August 29, 2022|url-status=live}}</ref><ref>{{cite web|url=https://www.riaa.com/gold-platinum/?tab_active=default-award&ar=Sum+41&ti=Does+This+Look+Infected%3F&format=Album&type=|title=American album certifications – Sum 41 – Does This Look Infected?|work=[[Recording Industry Association of America|RIAA]]|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20210730112629/https://www.riaa.com/gold-platinum/?tab_active=default-award&ar=Sum+41&ti=Does+This+Look+Infected%3F&format=Album&type=|archive-date=July 30, 2021|url-status=dead}}</ref>

The first single released from the album was "[[Still Waiting (Sum 41 song)|Still Waiting]]",<ref name="Still Waiting single">{{cite web|first=Gareth|last=Dobson|url=http://drownedinsound.com/releases/5665/reviews/5440-|title=Single Review: Sum 41 - Still Waiting |work=[[Drowned in Sound]]|date=November 20, 2002|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20210507181751/https://drownedinsound.com/releases/5665/reviews/5440-|archive-date=May 7, 2021|url-status=dead}}</ref> which peaked at number seven on the Modern Rock Tracks chart.<ref name="Sum 41 Billboard"/><ref name="Still Waiting single"/><ref>{{cite journal|title=Does This Look Infected|journal=[[People (magazine)|People]]|volume=59}}</ref> The second single, "[[The Hell Song]]" peaked at number 13 on the chart.<ref name="Sum 41 Billboard"/> "The Hell Song"'s music video depicted the band members using dolls with their pictures on them and others, such as [[Korn]], [[Kiss (band)|Kiss]], [[AC/DC]], [[Snoop Dogg]], [[Destiny's Child]], [[Ozzy Osbourne]], [[Sharon Osbourne]], and [[Pamela Anderson]].<ref name="Jon Wiederhorn MTV">{{cite web|first=Jon|last=Wiederhorn|url=http://www.mtv.com/news/1470504/sum-41-get-all-dolled-up-for-hell-song-video/|title=Sum 41 Get All Dolled Up For 'Hell Song' Video|work=[[MTV]]|date=March 12, 2003|access-date=June 27, 2019|archive-url=https://web.archive.org/web/20171227011506/http://www.mtv.com/news/1470504/sum-41-get-all-dolled-up-for-hell-song-video/|archive-date=December 27, 2017|url-status=dead}}</ref> The third single, "[[Over My Head (Better Off Dead)]]", had a video released exclusively in Canada and on the band's website, featuring live shots of the band.<ref>{{cite magazine|first=Jack|last=Rogers|url=https://www.rocksound.tv/features/read/sum-41-music-video-history|title=Sum 41: Music Video History|magazine=[[Rock Sound]]|date=June 20, 2019|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20190627235439/https://www.rocksound.tv/features/read/sum-41-music-video-history|archive-date=June 27, 2019|url-status=dead}}</ref> The video also appeared on the group's live DVD, ''[[Sake Bombs and Happy Endings]]'' (2003), as a bonus feature.<ref name="Jon Wiederhorn MTV"/> The band again began a long tour to promote the album before recording the group's third studio album.<ref name="Allmusic overview"/>

===2004–2005: ''Chuck''===
{{Main|Chuck (Sum 41 album)}}
In late May 2004, the band traveled to the [[Democratic Republic of the Congo]] with [[War Child (charity)|War Child Canada]], a branch of the British charity organization [[War Child (charity)|War Child]], to document the effects of the [[Second Congo War|country's civil war]].<ref name="MTV">{{cite news|first=Joe|last=D'Angelo|url=http://www.mtv.com/news/articles/1485897/03222004/sum_41.jhtml|title=Sum 41 Plan Trip To War-Torn Congo|work=[[MTV]]|date=March 22, 2004|access-date=February 1, 2023|archive-url=https://web.archive.org/web/20040609075026/http://www.mtv.com/news/articles/1485897/03222004/sum_41.jhtml|archive-date=June 9, 2004|url-status=dead}}</ref> There had been a stoppage in fighting for almost a year and a half, yet days after arriving, fighting broke out in [[Bukavu]] near the hotel where the band was staying.<ref name="MTV news">{{cite web|first1=Joe|last1=D'Angelo|first2=Adam|last2=Hootnick|url=http://www.mtv.com/news/articles/1488128/06032004/sum_41.jhtml|title=Sum 41 Caught in Violent Outbreak in Congo|work=[[MTV]]|date=June 3, 2004|access-date=February 1, 2023|archive-url=https://web.archive.org/web/20040605061403/http://www.mtv.com/news/articles/1488128/06032004/sum_41.jhtml|archive-date=June 5, 2004|url-status=dead}}</ref><ref name="Chuck AllMusic">{{cite web|first=Johnny|last=Loftus|url=https://www.allmusic.com/album/chuck-mw0000301542|title=Chuck - Sum 41|work=[[AllMusic]]|access-date=June 20, 2019|archive-url=https://web.archive.org/web/20230415161430/https://www.allmusic.com/album/chuck-mw0000301542|archive-date=April 15, 2023|url-status=live}}</ref> The band waited for the fighting to die down, but it did not.<ref name="knac.com">{{cite web|first=Curt|last=Miller|url=http://www.knac.com/article.asp?ArticleID=16287|title=Metal In Their Veins: An Exclusive Interview with Jason "Cone" McCaslin Of Sum 41|work=KNAC|date=July 22, 2015|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230320214016/http://www.knac.com/article.asp?ArticleID=16287|archive-date=March 20, 2023|url-status=live}}</ref> A [[United Nations|UN]] peacekeeper, Charles "Chuck" Pelletier, called for armoured carriers to take the hotel's occupants out of the hot zone.<ref name="knac.com"/> After nearly twenty hours, the carriers arrived, and the band and forty other civilians were taken to safety.<ref name="knac.com"/>{{Listen|filename=WATB.ogg|title="We're All to Blame"|description=Sample of "[[We're All to Blame]]" from ''[[Chuck (Sum 41 album)|Chuck]]''.<ref name="Chuck AllMusic"/> "We're All to Blame" features a thrash metal sound.<ref>{{cite web|first=Trevor|last=Nicholson|url=https://forgottenunderground.com/2018/07/12/5ish-sum-41-songs-every-guitar-player-should-know/|title=5(ish) Sum 41 Songs Every Guitar Player Should Know|work=Forgotten Underground|date=July 12, 2018|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20190208094840/https://forgottenunderground.com/2018/07/12/5ish-sum-41-songs-every-guitar-player-should-know/|archive-date=February 8, 2019|url-status=dead}}</ref>|format=[[Ogg]]}}

In honor of Pelletier, Sum 41 named its next album ''[[Chuck (Sum 41 album)|Chuck]]''; it was released on October 12, 2004.<ref name="Chuck AllMusic"/><ref>{{cite magazine|url=https://www.billboard.com/bb/reviews/album_article_display.jsp?vnu_content_id=1000682466|title=Chuck : Sum 41 : Review|magazine=[[Billboard (magazine)|Billboard]]|date=October 30, 2004|access-date=January 29, 2022|archive-url=https://web.archive.org/web/20041217201429/https://www.billboard.com/bb/reviews/album_article_display.jsp?vnu_content_id=1000682466|archive-date=December 17, 2004|url-status=dead}}</ref> The album charted at number 10 on the ''Billboard'' 200 chart.<ref name="Chart History">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/tlp/|title=Sum 41 Chart History|magazine=[[Billboard (magazine)|Billboard]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230419190034/https://www.billboard.com/artist/sum-41/chart-history/tlp/|archive-date=April 19, 2023|url-status=live}}</ref> It also peaked at number two on the Canadian Albums chart.<ref name="Canadian Albums">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/cna/|title=Sum 41 (Canadian Albums)|magazine=[[Billboard (magazine)|Billboard]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230407072655/https://www.billboard.com/artist/sum-41/chart-history/cna/|archive-date=April 7, 2023|url-status=live}}</ref> The album received positive reviews,<ref>{{cite web|url=http://music.ign.com/articles/558/558577p1.html|title=Chuck – IGN|work=[[IGN]]|date=October 20, 2004|access-date=September 7, 2011|archive-url=https://web.archive.org/web/20120528014242/http://music.ign.com/articles/558/558577p1.html|archive-date=May 28, 2012|url-status=dead}}</ref><ref>{{cite magazine|url=https://www.billboard.com/bb/reviews/album_article_display.jsp?vnu_content_id=1000682466|title=Chuck : Sum 41 : Review|magazine=[[Billboard (magazine)|Billboard]]|date=October 30, 2004|access-date=January 29, 2022|archive-url=https://web.archive.org/web/20041217201429/https://www.billboard.com/bb/reviews/album_article_display.jsp?vnu_content_id=1000682466|archive-date=2004-12-17|url-status=dead}}</ref> and was certified Platinum in Canada and gold in the United States.<ref>{{cite web|url=http://www.cria.ca/gold/1005_g.php|title=Gold & Platinum Certification&nbsp;– October 2005|publisher=[[Canadian Recording Industry Association]]|access-date=May 11, 2010|archive-url=https://web.archive.org/web/20101122131024/http://cria.ca/gold/1005_g.php|archive-date=November 22, 2010|url-status=dead}}</ref><ref name="riaa">{{cite web|url=https://www.riaa.com/goldandplatinumdata.php?table=SEARCH|title=RIAA Database Search for Sum 41|publisher=[[Recording Industry Association of America]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20070626050454/http://www.riaa.com/goldandplatinumdata.php?table=SEARCH|archive-date=June 26, 2007|url-status=dead}}</ref>

The first single from the album was "[[We're All To Blame]]",<ref>{{cite magazine|first=Michael|last=Endelman|url=http://www.ew.com/article/2004/10/04/chuck|title=Chuck|magazine=[[Entertainment Weekly]]|date=October 4, 2004|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230419125918/https://ew.com/article/2004/10/04/chuck/|archive-date=April 19, 2023|url-status=live}}</ref> which peaked at number 10 on the Alternative Airplay chart.<ref name="Alternative Airplay">{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/mrt/|title=Sum 41 Chart History (Alternative Airplay)|magazine=[[Billboard (magazine)|Billboard]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230405190255/https://www.billboard.com/artist/sum-41/chart-history/mrt/|archive-date=April 5, 2023|url-status=live}}</ref> It was followed by "[[Pieces (Sum 41 song)|Pieces]]",<ref>{{cite web|first=Joe|last=D'Angelo|url=http://www.mtv.com/news/1493978/sum-41-video-skit-deemed-unsuitable-for-children-band-says-good/|title=Sum 41 Video Skit Deemed Unsuitable For Children — Band Says, 'Good!'|work=[[MTV]]|date=November 19, 2004|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230423163659/https://www.mtv.com/news/7pc745/sum-41-video-skit-deemed-unsuitable-for-children-band-says-good|archive-date=April 23, 2023|url-status=dead}}</ref> which reached the top of the charts in Canada.<ref>{{cite magazine|url=https://worldradiohistory.com/Archive-RandR/2000s/2005/RR-2005-04-08.pdf|title=R&R Canada CHR/Pop Top 30|magazine=[[Radio & Records]]|issue=1601|page=28|date=April 8, 2005|access-date=October 6, 2019}}</ref><ref>{{cite magazine|url=https://worldradiohistory.com/Archive-RandR/2000s/2005/RR-2005-07-01.pdf|title=R&R Canada Hot AC Top 30|magazine=Radio & Records|issue=1613|page=50|date=July 1, 2005|access-date=October 6, 2019}}</ref><ref>{{cite magazine|url=https://worldradiohistory.com/Archive-RandR/2000s/2005/RR-2005-03-25.pdf|title=R&R Canada Rock Top 30|magazine=Radio & Records|issue=1599|page=62|date=March 25, 2005|access-date=October 6, 2019}}</ref> In 2004, the band went on a co-headlining North American Tour with [[Good Charlotte]].<ref name="North American Tour 2004">{{cite web|first=Joe|last=Dangelo|url=https://www.mtv.com/news/1491247/good-charlotte-sum-41-to-embark-on-co-headlining-trek/|title=Good Charlotte, Sum 41 To Embark On Co-Headlining Trek|work=[[MTV]]|date=September 21, 2004|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20220403050135/https://www.mtv.com/news/1491247/good-charlotte-sum-41-to-embark-on-co-headlining-trek/|archive-date=April 3, 2022|url-status=dead}}</ref> The band joined [[Mötley Crüe]] on their Carnival of Sin summer tour as an opening act.<ref name="Carnival of Sin">{{cite web|first=Gil|last=Kaufman|url=https://www.mtv.com/news/1497652/motley-crue-plan-summertime-carnival-of-sin-with-sum-41/|title=Motley Crue Plan Summertime Carnival Of Sin With Sum 41|work=[[MTV]]|date=March 2, 2005|access-date=April 3, 2022|archive-url=https://web.archive.org/web/20220404023443/https://www.mtv.com/news/1497652/motley-crue-plan-summertime-carnival-of-sin-with-sum-41/|archive-date=April 4, 2022|url-status=dead}}</ref>

A documentary of the band's experience in Congo was made into a film called ''[[Rocked: Sum 41 in Congo]]'' and later aired on [[MTV]].<ref name="Rocked 1">{{cite web|first=Helen|last=Chan|url=http://emptylighthouse.com/sum-41-overcoming-worst-preparing-comeback-1252450918|title=Sum 41: Overcoming the Worst, Preparing for a Comeback|work=Empty Lighthouse Magazine|date=June 2, 2015|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230409101154/http://emptylighthouse.com/sum-41-overcoming-worst-preparing-comeback-1252450918|archive-date=April 9, 2023|url-status=live}}</ref><ref name="Rocked 2">{{cite web|url=http://www.chartattack.com/news/2005/11/25/sum-41-congo-experiences-on-new-dvd/|title=Sum 41 Congo Experiences on New DVD|work=Chart Attack|date=November 25, 2005|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20180213080427/http://www.chartattack.com/news/2005/11/25/sum-41-congo-experiences-on-new-dvd/|archive-date=February 13, 2018|url-status=usurped}}</ref><ref name="Rocked 3">{{cite magazine|url=https://www.billboard.com/music/music-news/billboard-bits-sum-41-br-danielson-schematics-60532/|title=Billboard Bits: Sum 41, Br. Danielson, Schematics|magazine=[[Billboard (magazine)|Billboard]]|date=November 28, 2005|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230415160942/https://www.billboard.com/music/music-news/billboard-bits-sum-41-br-danielson-schematics-60532/|archive-date=April 15, 2023|url-status=live}}</ref><ref name="Rocked 4">{{cite web|first=Aubin|last=Paul|url=https://www.punknews.org/article/14644/sum-41-to-release-rocked-sum-41-in-congo-dvd-with-proceeds-to-war-child|title=Sum 41 to release "Rocked: Sum 41 In Congo DVD" with proceeds to War Child|work=Punknews.org|date=November 28, 2005|access-date=February 1, 2023|archive-url=https://web.archive.org/web/20211122093801/https://www.punknews.org/article/14644/sum-41-to-release-rocked-sum-41-in-congo-dvd-with-proceeds-to-war-child|archive-date=November 22, 2021|url-status=live}}</ref> War Child released it on DVD on November 29, 2005, in the United States and Canada.<ref name="Rocked 1"/><ref name="Rocked 2"/><ref name="Rocked 3"/><ref name="Rocked 4"/> Following the album's release, the band went on a tour with [[Good Charlotte]] until 2006.<ref>{{cite magazine|url=https://www.billboard.com/articles/news/66389/good-charlotte-sum-41-teaming-for-tour|title=Good Charlotte, Sum 41 Teaming For Tour|magazine=[[Billboard (magazine)|Billboard]]|date=September 22, 2014|access-date=February 12, 2018|archive-url=https://web.archive.org/web/20141124203353/https://www.billboard.com/articles/news/66389/good-charlotte-sum-41-teaming-for-tour|archive-date=November 24, 2014|url-status=live}}</ref> On December 21, 2005, Sum 41 released a [[live album]], ''[[Happy Live Surprise]]'', in Japan.<ref name="exclaim11">{{cite web|first=Stuart|last=Green|url=http://jam.canoe.ca/Music/2006/03/09/1481647-sun.html|title=Reviews: Sum 41 - 'Go Chuck Yourself'|date=April 2006|access-date=February 1, 2023|archive-url=https://archive.today/20140527184947/http://jam.canoe.ca/Music/2006/03/09/1481647-sun.html|archive-date=May 27, 2014|url-status=usurped}}</ref><ref name="winnipeg13">{{cite web|first=Stuart|last=Green|url=http://exclaim.ca/Reviews/PopAndRock/sum_41-go_chuck_yourself|title=Music: Sum 41 - 'Go Chuck Yourself'|date=April 1, 2006|access-date=February 1, 2023|archive-url=https://web.archive.org/web/20200817155622/http://exclaim.ca/music/article/sum_41-go_chuck_yourself|archive-date=August 17, 2020|url-status=dead}}</ref> The CD contained a full concert recorded live in [[London, Ontario]].<ref name="winnipeg13"/> The same CD was released March 7, 2006, in Canada under the name ''[[Go Chuck Yourself]]''.<ref name="exclaim11"/><ref name="winnipeg13"/> The band played videos before its set that were deemed "unsuitable for children".<ref name="MTV news 2">{{cite web|first=Joe|last=D'Angelo|url=http://www.mtv.com/news/articles/1493978/11192004/sum_41.jhtml|title=Sum 41 Video Skit Deemed Unsuitable For Children&nbsp;– Band Says, 'Good!'|work=[[MTV]]|date=November 19, 2004|access-date=February 1, 2023|archive-url=https://web.archive.org/web/20041208161402/http://www.mtv.com/news/articles/1493978/11192004/sum_41.jhtml|archive-date=December 8, 2004|url-status=dead}}</ref> Controversy arose over some of the videos' violent content.<ref name="MTV news 2"/>

===2006–2008: Baksh's departure and ''Underclass Hero''===
{{Main|Underclass Hero}}
On May 10, 2006, [[Dave Baksh]], via a statement through management, announced that he was leaving Sum 41 to work with his new band, [[Brown Brigade]], which has a more "classic metal" sound.<ref name="Exclaim Gormely"/><ref name="Baksh Departure">{{cite web|first=James|last=Montgomery|url=http://www.mtv.com/news/1531654/sum-41-guitarist-quits-group-to-focus-on-new-metal-band/|title=Sum 41 Guitarist Quits to Focus on New Band|work=[[MTV]]|date=May 12, 2006|access-date=January 31, 2023|archive-url=https://web.archive.org/web/20151016210154/http://www.mtv.com/news/1531654/sum-41-guitarist-quits-group-to-focus-on-new-metal-band/|archive-date=October 16, 2015|url-status=dead}}</ref> Baksh cited "creative differences" as the reason for his departure, but claimed that he was still on good terms with the band.<ref name="Baksh Departure"/>
The next day, Whibley confirmed Baksh's official departure and announced that the band would only replace him with a touring guitarist, who would not have any decision-making power in the band or be in videos, photo shoots, or albums.<ref name="official website 2">{{cite news|first=Deryck|last=Whibley|url=http://www6.islandrecords.com/sum41/www2/bbs/bbs1_7/thread.php?site_num=11&thread_num=14386018&folder_num=23&id=443188337988%20http://www6.islandrecords.com/sum41/www2/bbs/bbs1_7/...read_num=14386018&folder_num=23&id=443188337988|title=Sum 41 Board Message|work=Island Records|date=May 12, 2006|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20090408225827/http://www6.islandrecords.com/sum41/www2/bbs/bbs1_7/thread.php?site_num=11&thread_num=14386018&folder_num=23&id=443188337988%20http://www6.islandrecords.com/sum41/www2/bbs/bbs1_7/...read_num=14386018&folder_num=23&id=443188337988|archive-date=April 8, 2009|url-status=dead}}</ref> The band hired [[Gob (band)|Gob]] frontman and guitarist [[Tom Thacker (musician)|Tom Thacker]] to replace Baksh.<ref name="Exclaim Gormely"/><ref name="official website 2"/>
[[File:Sum 41 live 2008.jpg|thumb|left|230px|Sum 41 playing live at Club Oxygen on March 7, 2008]]

On April 17, 2007, the band released a song on [[iTunes]], "[[March of the Dogs]]".<ref name="March of the Dogs AP">{{cite web|url=http://www.altpress.com/index.php/news/entry/archive_1969|title=New Sum 41 album gets title, release date|work=[[Alternative Press (magazine)|Alternative Press]]|date=April 16, 2007|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20160826061322/http://www.altpress.com/index.php/news/entry/archive_1969|archive-date=August 26, 2016|url-status=dead}}</ref><ref name="George W. Bush">{{cite web|first=James|last=Montgomery|url=https://www.mtv.com/news/h7uyxo/sum-41-kill-president-in-new-song-deryck-whibley-says-its-a-metaphor|title=Sum 41 Kill President In New Song -- Deryck Whibley Says It's 'A Metaphor'|work=[[MTV]]|date=April 23, 2007|access-date=January 31, 2023|archive-url=https://web.archive.org/web/20230223140344/https://www.mtv.com/news/h7uyxo/sum-41-kill-president-in-new-song-deryck-whibley-says-its-a-metaphor|archive-date=February 23, 2023|url-status=dead}}</ref> Whibley was threatened with deportation from the United States for the song, because he metaphorically "killed the [[George W. Bush|president]]" on it.<ref name="George W. Bush"/><ref>{{cite web|author=Sowing|url=https://www.sputnikmusic.com/review/79851/Sum-41-Order-In-Decline/|title=Review: Sum 41 - Order In Decline|work=Sputnikmusic|date=July 19, 2019|access-date=January 31, 2023}}</ref> The band's fourth studio album, ''[[Underclass Hero]]'' was released on July 23, 2007.<ref>{{cite web|first=Kate|last=Sharp|url=https://www.bbc.co.uk/music/release/6vxm/|title=Sum 41 Underclass Hero Review|work=[[BBC]]|access-date=September 27, 2023|archive-url=https://web.archive.org/web/20231012161129/https://www.bbc.co.uk/music/reviews/6vxm/|archive-date=October 12, 2023|url-status=live}}</ref>

The album, backed by the first single and title track, "[[Underclass Hero (song)|Underclass Hero]]", was released on July 24, 2007.<ref name="George W. Bush"/><ref name="March of the Dogs AP"/><ref>{{cite web|first=Stephen Thomas|last=Erlewine|url=https://www.allmusic.com/album/underclass-hero-mw0000584729|title=Sum 41 Underclass Hero|work=[[AllMusic]]|access-date=June 27, 2019|archive-url=https://web.archive.org/web/20160306100928/https://www.allmusic.com/album/underclass-hero-mw0000584729|archive-date=March 6, 2016|url-status=live}}</ref> Despite mixed reviews,<ref>{{cite web|url=https://www.metacritic.com/music/underclass-hero/sum-41|title=Underclass Hero Reviews|website=Metacritic|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230407072655/https://www.metacritic.com/music/underclass-hero/sum-41|archive-date=April 7, 2023|url-status=live}}</ref> the album was a commercial success, debuting at number seven on the [[Billboard 200|''Billboard'' 200]]<ref name="Chart History"/> and at number one on the ''Billboard Rock Albums'' chart, the band's highest US chart position to date.<ref>{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/rck/|title=Sum 41 (Rock Albums)|magazine=[[Billboard (magazine)|Billboard]]|date=October 6, 2007|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230409142352/https://www.billboard.com/artist/sum-41/chart-history/rck/|archive-date=April 9, 2023|url-status=live}}</ref> It also peaked at number one on the Canadian Albums chart<ref name="Canadian Albums"/> and on the ''Alternative Albums'' chart.<ref>{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/alt/|title=Sum 41 (Alternative Albums)|magazine=[[Billboard (magazine)|Billboard]]|date=October 6, 2007|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230409100612/https://www.billboard.com/artist/sum-41/chart-history/alt/|archive-date=April 9, 2023|url-status=live}}</ref> Two more singles were released from the album, "[[Walking Disaster]]"<ref>{{cite web|url=https://www.antimusic.com/news/07/aug/0208.shtml|title=Sum 41 Debut in Top 10|work=antMusic|date=August 2, 2007|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230415160939/https://www.antimusic.com/news/07/aug/0208.shtml|archive-date=April 15, 2023|url-status=live}}</ref> and "[[With Me (Sum 41 song)|With Me]]".<ref>{{cite magazine|url=https://www.billboard.com/artist/sum-41/chart-history/can/|title=Sum 41 Billboard Canadian Hot 100|magazine=[[Billboard (magazine)|Billboard]]|access-date=September 27, 2023|archive-url=https://web.archive.org/web/20231002232358/https://www.billboard.com/artist/sum-41/chart-history/can/|archive-date=October 2, 2023|url-status=live}}</ref> ''Underclass Hero'' was certified Platinum in Canada.<ref>{{cite web|url=http://www.musiccanada.com/GPSearchResult.aspx?st=&ica=False&sa=sum%2041&sl=&smt=0&sat=-1&ssb=Artist|title=Gold and Platinum Search|work=[[Music Canada]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20131004214237/http://www.musiccanada.com/GPSearchResult.aspx?st=&ica=False&sa=Sum%2041&sl=&smt=0&sat=-1&ssb=Artist|archive-date=October 4, 2013|url-status=dead}}</ref> On September 15, 2007, the band headlined the [[House of Blues]] with [[Yellowcard]].<ref name="Yellowcard">{{cite web|first=Joe|last=Tone|url=https://www.clevescene.com/music/pop-punk-paradise-sum-41-and-yellowcard-at-house-of-blues-cleveland-1558511|title=Pop-Punk Paradise: Sum 41 and Yellowcard at House of Blues Cleveland|work=[[Cleveland Scene]]|date=September 13, 2007|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230415162441/https://www.clevescene.com/music/pop-punk-paradise-sum-41-and-yellowcard-at-house-of-blues-cleveland-1558511|archive-date=April 15, 2023|url-status=live}}</ref>

In October 2007, the band began the ''Strength in Numbers Tour'', a tour of Canada with Canadian band [[Finger Eleven]]; [[Die Mannequin]] opened each of Sum 41's shows.<ref name="chartattack">{{cite web|first=Michelle|last=Singerman|url=http://www.chartattack.com/news/2007/10/23/deryck-whibleys-weak-back-ends-strength-in-numbers-tour-early/|title=Deryck Whibley's Weak Back Ends Strength in Numbers Tour Early|work=Chart Attack|date=October 23, 2007|access-date=February 6, 2009|archive-url=https://web.archive.org/web/20150923222508/http://www.chartattack.com/news/2007/10/23/deryck-whibleys-weak-back-ends-strength-in-numbers-tour-early/|archive-date=September 23, 2015|url-status=usurped}}</ref> During the tour, Whibley sustained a [[herniated disk]].<ref name="chartattack"/> As a result, the group cancelled the rest of its shows.<ref name="chartattack"/> After Whibley recovered from his injury, the band continued the ''Underclass Hero'' tour in March 2008 and toured until early July, when the group began preparation for its next album.<ref>{{cite web|first=Lindsey|last=Rivait|url=http://pastthepages.ca/080319/feature.html|title=Sum 41: the Underclass Heroes bounce back|work=The Lance|date=March 19, 2008|access-date=August 17, 2008|archive-url=https://web.archive.org/web/20080326231650/http://pastthepages.ca/080319/feature.html|archive-date=March 26, 2008|url-status=dead}}</ref>

Sum 41 released a greatest hits album in Japan titled ''[[All the Good Shit|8 Years of Blood, Sake and Tears]]'' in November 2008.<ref name="8 Years of Blood, Sake and Tears">{{cite web|first=Josiah|last=Hughes|url=http://www.exclaim.ca/articles/generalarticlesynopsfullart.aspx?csid1=127&csid2=844&fid1=34690|title=Sum 41 Release Japan-Only Greatest Hits Album|work=[[Exclaim!]]|date=November 6, 2008|access-date=November 7, 2008|archive-url=https://archive.today/20120729113116/http://www.exclaim.ca/articles/generalarticlesynopsfullart.aspx?csid1=127&csid2=844&fid1=34690|archive-date=July 29, 2012|url-status=dead}}</ref> The album included a previously unreleased song, "Always", and a DVD, which contains each of the band's music videos.<ref name="8 Years of Blood, Sake and Tears"/> On March 17, the band released the worldwide version of the album, titled ''[[All the Good Shit]]''.<ref>{{cite web|url=http://www.chartattack.com/news/2009/02/06/sum-41-hits-collection-goes-worldwide/|title=Sum 41 Hits Collection Goes Worldwide|work=[[Chart (magazine)|ChartAttack.com]]|date=February 6, 2009|access-date=February 6, 2009|archive-url=https://web.archive.org/web/20130408101252/http://www.chartattack.com/news/2009/02/06/sum-41-hits-collection-goes-worldwide/|archive-date=April 8, 2013|url-status=usurped}}</ref><ref>{{cite web|first=Stephen Thomas|last=Erlewine|url=https://www.allmusic.com/album/all-the-good-sh-14-solid-gold-hits-2000-2008-mw0000812657|title=Sum 41 All the Good Sh**: 14 Solid Gold Hits 2000-2008|work=[[AllMusic]]|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20201026063314/https://www.allmusic.com/album/all-the-good-sh-14-solid-gold-hits-2000-2008-mw0000812657|archive-date=October 26, 2020|url-status=live}}</ref>

===2009–2012: Thacker's official arrival and ''Screaming Bloody Murder''===
{{Main|Screaming Bloody Murder}}
In July 2009, the band was an opening act for [[The Offspring]] on their Shit is Fucked Up Tour.<ref name="Shit is Fucked Up Tour">{{cite web|first=Alex|last=Young|url=https://consequence.net/2009/03/the-offspring-thinks-this-s-is-fed-up/|title=The Offspring thinks this S*** Is F***ed Up|work=[[Consequence (publication)|Consequence]]|date=March 25, 2009|access-date=December 26, 2023|archive-url=https://web.archive.org/web/20220404023442/https://consequence.net/2009/03/the-offspring-thinks-this-s-is-fed-up/|archive-date=April 4, 2022|url-status=live}}</ref> Drummer Steve Jocz confirmed that Tom Thacker was now an official member of Sum 41, and would take part in the writing and recording.<ref>{{cite web|url=http://www.islandrecords.com/site/artist_newsinfo.php?uf_item_id=2-1734744&uf_system_id=0&artist_id=259 |title=Sum 41 official website @ IslandRecords.com&nbsp;– Home|publisher=Islandrecords.com|access-date=March 9, 2010|archive-url=https://web.archive.org/web/20090724152620/http://www.islandrecords.com/site/artist_newsinfo.php?uf_item_id=2-1734744&uf_system_id=0&artist_id=259|archive-date=July 24, 2009|url-status=dead}}</ref> On November 5, 2009, Whibley posted a blog on the band's [[MySpace]] page announcing [[Gil Norton]] as the producer of the band's upcoming album, also saying that 20 songs were already written for the album.<ref>{{cite web|url=http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=3091855&blogId=517226745 |title=UPDATE FROM DERYCK&nbsp;– MySpace-blog {{pipe}} van Sum 41 |publisher=Blogs.myspace.com |access-date=March 9, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20091221100623/http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=3091855&blogId=517226745 |archive-date=December 21, 2009 }}</ref> In an interview with [[Tom Thacker (singer)|Tom Thacker]], some working titles for songs for the new album were confirmed, including "Panic Attack", "Jessica Kill" and "Like Everyone Else".<ref>{{cite web|url=http://theresnosolution.com/forum/viewtopic.php?f=4&t=11621&view=unread#unread|title=Tom's Interview – Sum 41 France|work=Theresnosolution|access-date=March 9, 2010|archive-url=https://web.archive.org/web/20110717025542/http://theresnosolution.com/forum/viewtopic.php?f=4&t=11621&view=unread#unread|archive-date=July 17, 2011|url-status=dead}}</ref> Pre-production for the new album took 13 days in December 2009, with the band officially entering the studio to begin recording at [[Perfect Sound Studios]] on January 26, 2010. The new studio album, titled ''[[Screaming Bloody Murder (Sum 41 album)|Screaming Bloody Murder]]'',<ref name="CTPOST2010">{{cite news|first=Scott|last=Gargan|url=http://www.ctpost.com/entertainment/article/Sum-41-now-veterans-of-Warped-Tour-568185.php|title=Sum 41 now veterans of Warped Tour|work=[[Connecticut Post]]|date=July 7, 2010|access-date=July 21, 2010|archive-url=https://web.archive.org/web/20100719002709/http://www.ctpost.com/entertainment/article/Sum-41-now-veterans-of-Warped-Tour-568185.php|archive-date=July 19, 2010|url-status=live}}</ref> was expected for a late 2010 release, but was delayed until early 2011.<ref name="canoe-rumors">{{cite web|first=Cédric|last=Bélanger|url=http://www.canoe.com/divertissement/musique/nouvelles/2010/08/03/14907881-jdq.html|title=Le groupe remet les pendules à l'heure|work=[[Canadian Online Explorer]]|language=fr|date=August 3, 2010|access-date=August 5, 2010|archive-url=https://archive.today/20120721232728/http://www.canoe.com/divertissement/musique/nouvelles/2010/08/03/14907881-jdq.html|archive-date=July 21, 2012|url-status=dead}}</ref> The band finished recording on June 24, 2010, just before joining the 2010 Warped Tour. While the group was on the tour, the new album entered the [[post-production]] stages of [[Audio mixing (recorded music)|mixing]] and [[Audio mastering|mastering]].<ref name="canoe-rumors"/> A new song called "Skumfuk" was leaked online on July 6, 2010.<ref>{{cite web|url=http://www.chartattack.com/news/87071/i-read-the-news-today-for-july-7-2010|title=I Read The News Today...|work=[[Chart (magazine)|Chart Attack]]|date=July 7, 2010|access-date=July 21, 2010|archive-url=https://web.archive.org/web/20100710051355/http://www.chartattack.com/news/87071/i-read-the-news-today-for-july-7-2010|archive-date=July 10, 2010 |url-status=usurped}}</ref> In an interview with [[Canadian Online Explorer|Canoe.ca]], Steve Jocz said that while producer Gil Norton was originally hired to engineer the new album, he was only around for a week and Sum 41 self-produced the record.<ref name="canoe-rumors"/> From October to November 2010, the band headlined the {{ill|Eastpak Antidote Tour|de|Eastpak Antidote Tour|vertical-align=sup|lt=|WD=}}.<ref name="Eastpak Antidote Tour">{{cite magazine|url=https://www.rocksound.tv/news/read/sum-41-to-headline-the-eastpak-antidote-tour|title=Sum 41 To Headline The Eastpak Antidote Tour|magazine=[[Rock Sound]]|date=August 9, 2010|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20160305223556/https://www.rocksound.tv/news/read/sum-41-to-headline-the-eastpak-antidote-tour|archive-date=March 5, 2016|url-status=dead}}</ref><ref name="Eastpak Antidote Tour2">{{cite web|first=Robin|last=Murray|url=https://www.clashmusic.com/live/eastpak-antidote-tour/|title=Eastpak Antidote Tour|work=[[Clash (magazine)|Clash]]|date=August 13, 2010|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043130/https://www.clashmusic.com/live/eastpak-antidote-tour/|archive-date=January 30, 2023|url-status=live}}</ref>

[[File:Sum 41 at the West Palm Beach Warped Tour 2010.jpg|thumb|left|Sum 41 performing on [[Warped Tour|Vans Warped Tour]] in 2010.]]
The first single from the album, "[[Screaming Bloody Murder (song)|Screaming Bloody Murder]]", was released on February 7, 2011, in the United States.<ref>{{cite web|first=Jon|last=Ableson|url=http://www.alterthepress.com/2011/01/new-sum-41-single-to-hit-us-radio-next.html|title=New Sum 41 Single To Hit US Radio Next Month|work=Alter the Press!|date=January 8, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20121108143119/http://www.alterthepress.com/2011/01/new-sum-41-single-to-hit-us-radio-next.html|archive-date=November 8, 2012|url-status=live}}</ref><ref>{{cite web|url=http://absolutepunk.net/showthread.php?t=2111782|title=Sum 41 Screams Bloody Murder&nbsp;– News Article|work=[[AbsolutePunk]]|access-date=January 29, 2023|archive-url=https://archive.today/20120710140149/http://absolutepunk.net/showthread.php?t=2111782|archive-date=July 10, 2012|url-status=dead}}</ref> On February 28, 2011, a stream of "Blood in My Eyes", another new song from the album, was released for free listening on Alternative Press.<ref>{{cite magazine|first=Scott|last=Heisel|url=http://www.altpress.com/features/entry/exclusive_stream_sum_41s_blood_in_my_eyes/|title=New Sum 41 Song|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=February 28, 2011|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20110305094418/http://www.altpress.com/features/entry/exclusive_stream_sum_41s_blood_in_my_eyes/|archive-date=March 5, 2011|url-status=dead}}</ref> The album ''[[Screaming Bloody Murder]]'' was released on March 29, 2011.<ref>{{cite web|first=Scott|last=Heisel|url=https://www.digitalspy.com/music/a302667/sum-41-to-release-dark-new-album/|title=Sum 41 to release 'dark' new album|work=[[Digital Spy]]|date=February 8, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043120/https://www.digitalspy.com/music/a302667/sum-41-to-release-dark-new-album/|archive-date=January 30, 2023|url-status=live}}</ref><ref>{{cite web|first=Mala|last=Mortensa|url=https://www.altpress.com/rock-albums-released-in-2011/|title=20 albums you won't believe are turning 10 in 2021|work=[[Alternative Press (magazine)|Alternative Press]]|date=January 5, 2021|access-date=January 29, 2023|archive-url=https://web.archive.org/web/20230324083002/https://www.altpress.com/rock-albums-released-in-2011/|archive-date=March 24, 2023|url-status=live}}</ref><ref>{{cite web|first=Alex|last=Hudson|url=https://exclaim.ca/music/article/sum_41_gear_up_for_screaming_bloody_murder|title=Sum 41 Gear Up for Screaming Bloody Murder|work=[[Exclaim!]]|date=January 13, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043117/https://exclaim.ca/music/article/sum_41_gear_up_for_screaming_bloody_murder|archive-date=January 30, 2023|url-status=live}}</ref> On May 28, 2011, Sum 41 performed a live set for ''[[Guitar Center]] Sessions'' on [[DirecTV]].<ref name="Guitar Center Sessions">{{cite web|first=Lauren|last=Wolman|url=https://www.broadwayworld.com/bwwtv/article/Sum-41-Kicks-Off-New-Run-Of-Guitar-Center-Sessions-Episodes-On-DIRECTV-528-20110528|title=Sum 41 Kicks-Off New Run Of Guitar Center Sessions Episodes On DIRECTV, 5/28|work=[[BroadwayWorld]]|date=May 28, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043117/https://www.broadwayworld.com/bwwtv/article/Sum-41-Kicks-Off-New-Run-Of-Guitar-Center-Sessions-Episodes-On-DIRECTV-528-20110528|archive-date=January 30, 2023|url-status=live}}</ref> The episode included an interview with program host [[Nic Harcourt]].<ref name="Guitar Center Sessions"/>

"[[Baby You Don't Wanna Know]]" was released as the album's second single.<ref>{{cite web|first=Bryne|last=Yancey|url=https://www.punknews.org/article/43799/videos-sum-41-baby-you-dont-wanna-know|title=Sum 41: "Baby You Don't Wanna Know"|work=Punknews.org|date=August 5, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043120/https://www.punknews.org/article/43799/videos-sum-41-baby-you-dont-wanna-know|archive-date=January 30, 2023|url-status=live}}</ref> A music video was also produced for the first single, "Screaming Bloody Murder", but it was left unreleased due to its content and difficulties with executives of the band.<ref>{{cite web|url=http://theresnosolution.com/forum/viewtopic.php?f=4&t=11601&start=12320#p346779|title=Sum41/SBM Discussion!|work=Theresnosolution|access-date=July 24, 2011|archive-url=https://web.archive.org/web/20111001131700/http://theresnosolution.com/forum/viewtopic.php?f=4&t=11601&start=12320#p346779|archive-date=October 1, 2011|url-status=dead}}</ref>

On August 9, 2011, Sum 41 released the live album ''[[Live at the House of Blues, Cleveland 9.15.07]]'' – a live recording of a show that took place on September 15, 2007, in [[Cleveland, Ohio]], while the band was touring its previous album ''[[Underclass Hero]]''.<ref>{{cite web|url=https://music.apple.com/us/album/live-at-the-house-of-blues-cleveland-9-15-07/1442874922 |title=Live at the House of Blues, Cleveland, 9.15.07 by Sum 41 |publisher=[[iTunes]] |date=August 9, 2011 |access-date=October 19, 2011}}</ref> A week later when the band was touring the US as part of the [[Vans Warped Tour]], they were forced once again to cancel all remaining dates, when Whibley re-injured his back after playing three shows.<ref name="broken back">{{cite magazine|first=Michele|last=Bird|url=https://www.altpress.com/sum_41_cancel_south_american_tour/|title=Sum 41 cancel South American tour|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=August 31, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043119/https://www.altpress.com/sum_41_cancel_south_american_tour/|archive-date=January 30, 2023|url-status=live}}</ref> It was announced on the band's official website that they would be postponing indefinitely all upcoming tour dates for 2011 while Whibley underwent treatment.<ref name="broken back"/> In 2011, Sum 41 was nominated for a [[Grammy Award for Best Hard Rock/Metal Performance]] for the song "Blood in My Eyes", but lost to the [[Foo Fighters]].<ref name="grammy awards 2012">{{cite web|url=https://www.hollywoodreporter.com/news/music-news/grammy-awards-2012-winners-whitney-houston-death-adele-289778/|title=Grammy Awards 2012: Complete Winners And Nominees List|work=[[The Hollywood Reporter]]|date=February 12, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230607050000/https://www.hollywoodreporter.com/news/music-news/grammy-awards-2012-winners-whitney-houston-death-adele-289778/|archive-date=June 7, 2023|url-status=live}}</ref><ref name="grammy awards 2012 2">{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-best-hard-rock-metal-nomination-other-bizarre-grammy-moments/|title=Sum 41's Best Hard Rock / Metal Nomination + Other Bizarre Grammy Moments|work=[[Loudwire]]|date=December 1, 2011|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419232509/https://loudwire.com/sum-41-best-hard-rock-metal-nomination-other-bizarre-grammy-moments/|archive-date=April 19, 2023|url-status=live}}</ref><ref name="grammy awards 2012 3">{{cite web|url=https://www.grammy.com/grammys/artists/sum-41/7959|title=Grammy Award Results for Sum 41 Bizarre Grammy Moments|work=[[The Recording Academy]]|date=November 23, 2020|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419125919/https://www.grammy.com/artists/sum-41/7959|archive-date=April 19, 2023|url-status=dead}}</ref>

In February 2012, the band shot a music video for the song "[[Blood in My Eyes]]", the third single from the album, with director Michael Maxxis in [[Los Angeles]].<ref>{{Cite magazine|first=Michele|last=Bird|url=https://www.altpress.com/news/sum_41_to_shoot_blood_in_my_eyes_video/|title=Sum 41 to shoot "Blood In My Eyes" video|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=February 24, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20220402212554/https://www.altpress.com/news/sum_41_to_shoot_blood_in_my_eyes_video/|archive-date=April 2, 2022|url-status=live}}</ref> It was released officially released on September 10, 2012.<ref>{{Cite magazine|first=Michele|last=Bird|url=https://www.altpress.com/news/sum_41_to_release_blood_in_my_eyes_video/|title=Sum 41 to release "Blood In My Eyes" video|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=September 10, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419125918/https://www.altpress.com/sum_41_to_release_blood_in_my_eyes_video/|archive-date=April 19, 2023|url-status=live}}</ref>

From November to December 2012, the band undertook the ''Does This Look Infected?'' 10th Anniversary Tour, touring the United States to celebrate the album's release in 2002.<ref name="DTLI? 10th Anniversary">{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-to-embark-on-does-this-look-infected-10th-anniversary-tour/|title=Sum 41 to Embark on 'Does This Look Infected?' 10th Anniversary Tour|work=[[Loudwire]]|date=September 12, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419232513/https://loudwire.com/sum-41-to-embark-on-does-this-look-infected-10th-anniversary-tour/|archive-date=April 19, 2023|url-status=live}}</ref><ref name="DTLI? 10th Anniversary2">{{cite web|first=John|last=Flynn|url=https://www.punknews.org/article/48838/tours-sum-41-announce-does-this-look-infected-10th-anniversary-tour|title=Sum 41 announce 'Does This Look Infected?' 10th anniversary tour|work=Punknews.org|date=September 10, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043120/https://www.punknews.org/article/48838/tours-sum-41-announce-does-this-look-infected-10th-anniversary-tour|archive-date=January 30, 2023|url-status=live}}</ref><ref name="DTLI? 10th Anniversary3">{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-10th-anniversary-does-this-look-infected-nyc-show/|title=Sum 41 Celebrate 10th Anniversary of 'Does This Look Infected?' With Nostalgic NYC Show|work=[[Loudwire]]|date=November 16, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230130043117/https://loudwire.com/sum-41-10th-anniversary-does-this-look-infected-nyc-show/|archive-date=January 30, 2023|url-status=live}}</ref>

On November 26, 2012, the band members revealed that they were taking a break from touring in 2013 to begin work on a new record.<ref>{{cite web|url=http://www.absolutepunk.net/showthread.php?t=2963472|title=Sum 41 – 11.26.12 – Interview|work=[[AbsolutePunk]]|access-date=January 29, 2023|archive-url=https://archive.today/20130221043959/http://www.absolutepunk.net/showthread.php?t=2963472|archive-date=February 21, 2013|url-status=dead}}</ref>

===2013–2018: Continued lineup changes and ''13 Voices''===
{{Main|13 Voices}}
{{multiple image
| align     = right
| direction = vertical
| footer    = In 2015, [[Dave Baksh]] (top) rejoined Sum 41, while [[Frank Zummo]] (bottom) was recruited as the band's new drummer.
| image1    = Sum 41 - 2017154162825 2017-06-03 Rock am Ring - Sven - 1D X II - 0969 - AK8I8811.jpg
| width1    = 200
| image2    = Sum 41 - 2017154163140 2017-06-03 Rock am Ring - Sven - 1D X II - 1010 - AK8I8852.jpg
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From March to April 2013, the band co-headlined the Dead Silence Tour with [[Billy Talent]].<ref name="Dead Silence Tour">{{cite web|url=https://stitchedsound.com/billy-talent-announce-dead-silence-tour-2013/|title=Billy Talent announce Dead Silence tour 2013|work=Stitched Sound|date=November 30, 2012|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160940/https://stitchedsound.com/billy-talent-announce-dead-silence-tour-2013/|archive-date=April 15, 2023|url-status=live}}</ref> On April 18, 2013, drummer Jocz announced he would be leaving the band on his official [[Facebook]] page,<ref name="Jocz">{{cite web|first=Dan|last=Stubbs|url=https://www.nme.com/news/music/sum-41-10-1250167|title=Drummer Steve Jocz quits Sum 41|work=[[NME]]|date=April 18, 2013|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20200807215630/https://www.nme.com/news/music/sum-41-10-1250167|archive-date=August 7, 2020|url-status=live}}</ref><ref>{{cite web|first=Aubin|last=Paul|url=https://www.punknews.org/article/51319/sum-41s-steve-stevo-jocz-leaves-the-band|title=Sum 41's Steve "Stevo" Jocz leaves the band|work=Punknews.org|date=April 18, 2013|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20130421010311/https://www.punknews.org/article/51319/sum-41s-steve-stevo-jocz-leaves-the-band|archive-date=April 21, 2013|url-status=live}}</ref><ref>{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-drummer-steve-jocz-leaves-band/|title=Sum 41 Drummer Steve Jocz Leaves Band|work=[[Loudwire]]|date=April 18, 2013|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20170619234623/https://loudwire.com/sum-41-drummer-steve-jocz-leaves-band/|archive-date=June 19, 2017|url-status=live}}</ref> leaving Whibley as the sole founding member of the band.<ref>{{cite web|url=http://www.89xradio.com/Media/Podcast-List/89X-Backstage-Access/Jay-Hud-talks-with-Deryck-from-Sum-41|title=Jay Hud talks with Deryck from Sum 41|work=89xradio|date=November 1, 2016|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20160303204117/http://www.89xradio.com/Media/Podcast-List/89X-Backstage-Access/Jay-Hud-talks-with-Deryck-from-Sum-41|archive-date=March 3, 2016|url-status=dead}}</ref>

On May 16, 2014, Deryck Whibley posted on his website, explaining that he had liver and kidney failure due to excessive drinking. He also said that he had some ideas for new songs, and that the band would be soon starting to make a new album.<ref>{{cite magazine|first=Miriam|last=Coleman|url=https://www.rollingstone.com/music/news/sum-41s-deryck-whibley-says-alcoholism-nearly-killed-him-20140517|title=Sum 41's Deryck Whibley Says Alcoholism Nearly Killed Him|magazine=[[Rolling Stone]]|date=May 17, 2014|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20140520095812/https://www.rollingstone.com/music/news/sum-41s-deryck-whibley-says-alcoholism-nearly-killed-him-20140517|archive-date=May 20, 2014|url-status=dead}}</ref> On June 9, 2014, Whibley said on his Facebook page that he was working on new Sum 41 music out of his home studio to get ready to record some new tunes.<ref>{{cite magazine|url=http://www.altpress.com/news/entry/sum_41s_deryck_whibley_writing_new_music|title=Sum 41's Deryck Whibley writing new music – News – Alternative Press|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=June 9, 2014|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20150218001908/http://www.altpress.com/news/entry/sum_41s_deryck_whibley_writing_new_music|archive-date=February 18, 2015|url-status=dead}}</ref>

On July 9, 2015, the band launched a [[PledgeMusic]] campaign for its comeback album.<ref>{{cite magazine|first=Tyler|last=Sharp|url=http://www.altpress.com/news/entry/sum_41_to_release_comeback_album|title=Sum 41 to release comeback album|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=July 9, 2015|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20150711173936/http://www.altpress.com/news/entry/sum_41_to_release_comeback_album|archive-date=July 11, 2015|url-status=dead}}</ref> On July 23, 2015, the band played its comeback show at the Alternative Press Awards, which featured former lead guitarist Dave Baksh, joining the band on stage nine years after his departure.<ref>{{cite web|first=Chad|last=Childers|url=https://loudwire.com/sum-41-welcome-back-dave-brownsound-baksh/|title=Sum 41 Welcome Back Guitarist Dave 'Brownsound' Baksh|work=[[Loudwire]]|date=July 23, 2015|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20170622041519/https://loudwire.com/sum-41-welcome-back-dave-brownsound-baksh/|archive-date=June 22, 2017|url-status=live}}</ref><ref>{{cite magazine|url=https://www.upsetmagazine.com/news/dave-brownsound-baksh-rejoins-sum-41|title=Dave "Brownsound" Baksh rejoins Sum 41|magazine=Upset Magazine|date=July 23, 2015|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20220328051729/https://www.upsetmagazine.com/news/dave-brownsound-baksh-rejoins-sum-41|archive-date=March 28, 2022|url-status=dead}}</ref> The band's set also featured [[Darryl McDaniels|DMC]] as guest.<ref name="DMC">{{cite magazine|first=Kika|last=Chatterjee|url=http://www.altpress.com/news/entry/new_sum_41_music_the_record_is_almost_done|title=New Sum 41 music: "The record is almost done"|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=January 2, 2016|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20160304194638/http://www.altpress.com/news/entry/new_sum_41_music_the_record_is_almost_done|archive-date=March 4, 2016|url-status=dead}}</ref> It also introduced [[Frank Zummo]] from [[Street Drum Corps]] as the new drummer.<ref>{{cite magazine|first=Phil|last=Hood|url=https://drummagazine.com/frank-zummo-talks-about-joining-sum-41-and-starting-new-drum-clinic-tour/|title=Frank Zummo Talks About Joining Sum 41 And Starting New Drum Clinic Tour|magazine=Drum Magazine|date=July 19, 2018|access-date=March 27, 2022|archive-url=https://web.archive.org/web/20200125154442/https://drummagazine.com/frank-zummo-talks-about-joining-sum-41-and-starting-new-drum-clinic-tour/|archive-date=January 25, 2020|url-status=live}}</ref> Sum 41 confirmed Baksh's official return to the band on August 14, 2015.<ref name="DMC"/> On December 26, 2015, Sum 41 teased two new songs on their [[Instagram]] profile.<ref name="DMC"/>

The band performed on the 2016 [[Warped Tour]].<ref name="2016 Warped Tour">{{cite magazine|first=Andy|last=Biddulph|url=http://www.rocksound.tv/news/read/heres-the-line-up-for-this-summers-vans-warped-tour|title=See The Full Vans Warped Tour Line-Up|magazine=[[Rock Sound]]|date=March 22, 2016|access-date=March 22, 2016|archive-url=https://web.archive.org/web/20160322235807/http://www.rocksound.tv/news/read/heres-the-line-up-for-this-summers-vans-warped-tour|archive-date=March 22, 2016|url-status=dead}}</ref> On May 11, 2016, the group announced its signing to [[Hopeless Records]].<ref>{{cite magazine|url=https://www.altpress.com/sum_41_sign_to_hopeless_records/|title=Sum 41 sign to Hopeless Records|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=May 10, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419141739/https://www.altpress.com/sum_41_sign_to_hopeless_records/|archive-date=April 19, 2023|url-status=live}}</ref><ref>{{cite web|first=Ben|last=Tipple|url=https://www.punktastic.com/news/sum-41-sign-to-hopeless-records/|title=Sum 41 Sign To Hopeless Records|work=Punktastic|date=May 11, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419033108/https://www.punktastic.com/news/sum-41-sign-to-hopeless-records/|archive-date=April 19, 2023|url-status=live}}</ref> The band announced on June 6, 2016 that their sixth album would be called ''[[13 Voices]]'' and would be released on October 7, 2016.<ref name="13 Voices Release">{{cite magazine|url=https://www.altpress.com/sum_41_announce_comeback_album_13_voices/|title=Sum 41 announce comeback album, '13 Voices'|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=June 6, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230419141716/https://www.altpress.com/sum_41_announce_comeback_album_13_voices/|archive-date=April 19, 2023|url-status=live}}</ref> That same day, they also revealed album's track list and cover art.<ref name="13 Voices Release"/> The first song from the upcoming album, "[[Fake My Own Death]]", was released on June 28, 2016, through [[Hopeless Records]]' official [[YouTube]] channel, along with a music video for the song.<ref>{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-fake-my-own-death-video/|title=Sum 41 Roar Back With 'Fake My Own Death' Video|work=[[Loudwire]]|date=June 29, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230128202944/https://loudwire.com/sum-41-fake-my-own-death-video/|archive-date=January 28, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Jessica|last=Goodman|url=https://ew.com/article/2016/06/29/sum-41-fake-my-own-death/|title=Sum 41: Fake My Own Death released|magazine=[[Entertainment Weekly]]|date=June 29, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160939/https://ew.com/article/2016/06/29/sum-41-fake-my-own-death/|archive-date=April 15, 2023|url-status=live}}</ref> The song was performed on ''[[The Late Show with Stephen Colbert]]'' on October 3, 2016.<ref>{{cite web|url=https://alterock.net/sum-41-late-show/|title=Watch Sum 41 Perform 'Fake My Own Death' on Stephen Colbert's The Late Show|work=Alterock|date=October 4, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160940/https://alterock.net/sum-41-late-show/|archive-date=April 15, 2023|url-status=live}}</ref> The album's first official single, "[[War (Sum 41 song)|War]]", was released on August 25, 2016.<ref>{{cite web|first=Brent|last=Furdyk|url=https://etcanada.com/news/162108/sum-41-releases-deeply-personal-new-single-music-video-war/|title=Sum 41 Releases Deeply Personal New Single, Music Video: 'War'|work=ET Canada|date=August 25, 2016|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20160826145945/http://etcanada.com/news/162108/sum-41-releases-deeply-personal-new-single-music-video-war/|archive-date=August 26, 2016|url-status=dead}}</ref><ref>{{cite web|first=Chad|last=Childers|url=https://loudwire.com/sum-41-war-video/|title=Sum 41 Revisit Past Wreckage With 'War' Video|work=[[Loudwire]]|date=August 22, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160939/https://loudwire.com/sum-41-war-video/|archive-date=April 15, 2023|url-status=live}}</ref> On September 29, 2016, the track "[[God Save Us All (Death to Pop)]]" was officially released (along with a live music video).<ref>{{cite web|url=https://www.kerrang.com/sum-41-release-god-save-us-all-death-to-pop|title=Sum 41 Release God Save Us All (Death To Pop)|work=[[Kerrang!]]|date=September 29, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160940/https://www.kerrang.com/sum-41-release-god-save-us-all-death-to-pop|archive-date=April 15, 2023|url-status=live}}</ref><ref>{{cite web|first=Ricky|last=Frankel|url=https://www.punknews.org/article/61997/videos-sum-41-god-save-us-all-death-to-pop|title=Sum 41: "God Save Us All (Death To Pop)"|work=Punknews.org|date=September 26, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230128202943/https://www.punknews.org/article/61997/videos-sum-41-god-save-us-all-death-to-pop|archive-date=January 28, 2023|url-status=live}}</ref> [[Independent Music Companies Association|IMPALA]] awarded the album with a double gold award for 150,000 sold copies across Europe.<ref>{{cite web|url=https://www.impalamusic.org/content/sum-41-impala-doublegold-award|title=Sum 41 - Impala Double Gold Award|work=Impala Music|access-date=March 28, 2022|archive-url=https://web.archive.org/web/20181028225707/https://www.impalamusic.org/content/sum-41-impala-doublegold-award|archive-date=October 28, 2018}}</ref><ref>{{cite web|url=https://www.impalamusic.org/node/11|title=Awards|publisher=Impala Music|access-date=March 28, 2022|archive-url=https://web.archive.org/web/20181028225707/https://www.impalamusic.org/content/sum-41-impala-doublegold-award|archive-date=October 28, 2018|url-status=dead}}</ref>

On September 29, 2016, it was announced that the band would be headlining the [[Kerrang!#Kerrang! Tour|2016 Kerrang! Tour]].<ref name="2016 Kerrang! Tour">{{cite web|url=https://planetradio.co.uk/kerrang/entertainment/music/kerrang-tour-2016-headliner-dates-announced-tickets-sale-now/|title=Kerrang! Tour 2016 Headliner and Dates Announced - Tickets On Sale Now!|work=Kerrang! Radio|date=September 25, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20170623200957/https://planetradio.co.uk/kerrang/entertainment/music/kerrang-tour-2016-headliner-dates-announced-tickets-sale-now/|archive-date=June 23, 2017|url-status=live}}</ref><ref>{{cite web|first=Alexandra|last=Pollard|url=https://gigwise.com/news/103582/kerrang-uk-2016-frank-carter-joins-sum-41-on-line-up-buy-tickets|title=The Kerrang! Tour 2016 just got even bigger|work=[[Gigwise]]|date=November 4, 2015|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230128202943/https://gigwise.com/news/103582/kerrang-uk-2016-frank-carter-joins-sum-41-on-line-up-buy-tickets|archive-date=January 28, 2023|url-status=dead}}</ref> From October 2016 to August 2017, the band went on their [[Don't Call It a Sum-Back Tour]] in support of 13 Voices. The band played nearly 100 shows in the Americas,<ref name="North America DCIASBT">Sources for tour dates in North America:
*{{cite web|first=Stef|last=Lach|url=https://www.loudersound.com/news/sum-41-announce-north-american-autumn-tour|title=Sum 41 announce North American autumn tour|work=Louder Sound|date=August 9, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160939/https://www.loudersound.com/news/sum-41-announce-north-american-autumn-tour|archive-date=April 15, 2023|url-status=live}}
*{{cite web|first=Francisco|last=Rendon|url=http://www.pollstar.com/news_article.aspx?ID=826159|title=Here Comes Some Sum 41|website=Pollstar|date=August 8, 2016|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20160809131420/http://www.pollstar.com/news_article.aspx?ID=826159|archive-date=August 9, 2016|url-status=dead}}</ref> Europe,<ref name="Europe DCIASBT">Sources for tour dates in Europe, first leg:
*{{cite web|first=John|last=Earls|url=https://www.nme.com/news/music/sum-41-28-1189962|title=Sum 41 announce tour for '13 Voices' album|work=[[NME]]|date=October 10, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160939/https://www.nme.com/news/music/sum-41-28-1189962|archive-date=April 15, 2023|url-status=live}}
*{{cite web|first=Loïc|last=Cousin|url=http://www.bordeaux-gazette.com/les-sum-41-mettent-le-feu-a-talence.html|title=Les Sum 41 mettent le feu à Talence|language=French|trans-title=The Sum 41 set fire to Talence|work=Bordeaux Gazette|date=March 11, 2017|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20220524063826/http://www.bordeaux-gazette.com/les-sum-41-mettent-le-feu-a-talence.html|archive-date=May 24, 2022|url-status=live}}
*{{cite web|first=Lucie|last=Valais|url=http://www.linternaute.com/musique/magazine/1334661-sum-41-retrouvez-toutes-les-dates-de-leur-tournee-en-france-en-2017/|title=Sum 41 : retrouvez toutes les dates de leur tournée en France en 2017|language=French|trans-title=Sum 41: find all the dates of their tour in France in 2017|website=[[:fr:L'Internaute|L'Internaute]]|publisher=[[:fr:CCM Benchmark|CCM Benchmark]]|date=October 10, 2016|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20180116004324/http://www.linternaute.com/musique/magazine/1334661-sum-41-retrouvez-toutes-les-dates-de-leur-tournee-en-france-en-2017/|archive-date=January 16, 2018|url-status=live}}</ref> and Asia.<ref name="Asia DCIASBT">{{cite web|first=Hidzir|last=Junaini|url=https://www.bandwagon.asia/articles/sum-41-are-back-and-they-re-heading-to-singapore|title=Sum 41 are back and they're heading to Singapore|work=Bandwagon Media|date=July 20, 2017|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20180115185437/https://www.bandwagon.asia/articles/sum-41-are-back-and-they-re-heading-to-singapore|archive-date=January 15, 2018|url-status=live}}</ref> The band invited fans to record a music video for "[[Goddamn I'm Dead Again]]" that was released on May 3, 2017.<ref>{{cite web|url=https://newnoisemagazine.com/sum-41-rocks-fans-new-music-video-goddamn-im-dead/|title=Sum 41 Rocks Out With Fans in New Music Video for "Goddamn I'm Dead|work=Noise Magazine|date=May 3, 2017|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20170508151643/https://newnoisemagazine.com/sum-41-rocks-fans-new-music-video-goddamn-im-dead/|archive-date=May 8, 2017|url-status=dead}}</ref> In April 2017, the band co-headlined the 2017 Canadian Tour with [[Papa Roach]].<ref name="2017 Canadian Tour">{{cite web|url=https://www.monsterenergy.com/pe/es/news/papa-roach-unveil-title-and-details-of-their-new-album|title=Papa Roach unveil title and details of their new album|work=Monster Energy|date=March 27, 2017|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230415160939/https://www.monsterenergy.com/pe/es/news/papa-roach-unveil-title-and-details-of-their-new-album|archive-date=April 15, 2023|url-status=live}}</ref> From April to May 2017, the band co-headlined the We Will Detonate Tour with [[Pierce the Veil]].<ref name="We Will Detonate Tour">{{cite magazine|url=https://newnoisemagazine.com/sum-41-pierce-veil-announce-spring-tour/|title=Sum 41 and Pierce The Veil Announce Spring Tour with Emarosa and Chapel|magazine=New Noise Magazine|date=March 1, 2017|access-date=January 28, 2023|archive-url=https://web.archive.org/web/20220403051640/https://newnoisemagazine.com/sum-41-pierce-veil-announce-spring-tour/|archive-date=April 3, 2022|url-status=dead}}</ref> The group embarked on a 15th anniversary tour of ''Does This Look Infected'' in 2018.<ref name="Colburn">{{cite web|first=Randall|last=Colburn|url=https://consequence.net/2018/02/sum-41-announce-does-this-look-infected-15th-anniversary-tour-of-north-america/|title=Sum 41 announce Does This Look Infected? 15th anniversary tour of North America|work=[[Consequence (publication)|Consequence]]|date=February 13, 2018|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20220328054253/https://consequence.net/2018/02/sum-41-announce-does-this-look-infected-15th-anniversary-tour-of-north-america/|archive-date=March 28, 2022|url-status=live}}</ref><ref>{{cite magazine|first=Maggie|last=Dickman|url=https://www.altpress.com/sum_41_does_this_look_infected_anniversary_tour_super_whatevr_support/|title=Sum 41 announce additional support for 'Does This Look Infected?' anniversary tour|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=April 11, 2018|access-date=December 27, 2023|archive-url=https://web.archive.org/web/20230201043502/https://www.altpress.com/sum_41_does_this_look_infected_anniversary_tour_super_whatevr_support/|archive-date=February 1, 2023|url-status=live}}</ref>

===2019–2021: ''Order in Decline''===
{{Main|Order in Decline}}
From April to May 2019, the band embarked on an intimate tour called the No Personal Space Tour.<ref name="No Personal Space Tour">{{cite web|first=Lauryn|last=Schaffner|url=https://loudwire.com/sum-41-2019-no-personal-space-tour/|title=Sum 41 Announce Intimate 2019 'No Personal Space' Tour|work=[[Loudwire]]|date=March 11, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230601153444/https://loudwire.com/sum-41-2019-no-personal-space-tour/|archive-date=June 1, 2023|url-status=live}}</ref> In April 2019, the band announced via social media its return with new music.<ref name="BBM Order in Decline">{{cite web|url=http://www.blabbermouth.net/news/sum-41-returns-with-heaviest-and-most-aggressive-album-to-date-order-in-decline/|title=Sum 41 Returns With 'Heaviest And Most Aggressive' Album To Date, 'Order In Decline'|work=[[Blabbermouth.net]]|date=April 24, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230602221737/http://www.blabbermouth.net/news/sum-41-returns-with-heaviest-and-most-aggressive-album-to-date-order-in-decline/|archive-date=June 2, 2023|url-status=live}}</ref><ref name="cosOrder in Decline">{{cite web|first=Spencer|last=Kaufman|url=https://consequence.net/2019/04/sum-41-new-album-order-in-decline-out-for-blood-single/|title=Sum 41 announce new album, Order in Decline, release "Out for Blood": Stream|work=[[Consequence (publication)|Consequence]]|date=April 24, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230923085039/https://consequence.net/2019/04/sum-41-new-album-order-in-decline-out-for-blood-single/|archive-date=September 23, 2023|url-status=live}}</ref> On April 24, 2019 they released the single, "[[Out for Blood (Sum 41 song)|Out for Blood]]" through [[Hopeless Records]].<ref name="cosOrder in Decline"/><ref>{{cite web|first=Graham|last=Hartmann|url=https://loudwire.com/sum-41-order-in-decline-album-out-for-blood/|title=Sum 41 Announce 'Order in Decline' Album, Unveil New Track 'Out for Blood'|work=[[Loudwire]]|date=April 24, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230128050204/https://loudwire.com/sum-41-order-in-decline-album-out-for-blood/|archive-date=January 28, 2023|url-status=live}}</ref> The same day, the band also announced their seventh studio album, ''[[Order in Decline]]'', with a set release date of July 19, 2019.<ref name="BBM Order in Decline"/><ref name="cosOrder in Decline"/><ref>{{cite web|first=Paul|last=Brown|url=https://wallofsoundau.com/2019/04/25/sum-41-drop-new-song-out-for-blood-from-forthcoming-album-order-in-decline/|title=Sum 41 drop new song 'Out For Blood' from forthcoming album Order in Decline|work=Wall of Sound|date=April 24, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230709193945/https://wallofsoundau.com/2019/04/25/sum-41-drop-new-song-out-for-blood-from-forthcoming-album-order-in-decline/|archive-date=July 9, 2023|url-status=live}}</ref>

The second single from the album "A Death in the Family" was released along with a music video on June 11, 2019.<ref>{{cite magazine|first=Rachel|last=Campbell|url=https://www.altpress.com/sum-41-a-death-in-the-family-video/|title=Sum 41 go back in time for "A Death In The Family" video|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=June 11, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230128050153/https://www.altpress.com/sum-41-a-death-in-the-family-video/|archive-date=January 28, 2023|url-status=live}}</ref><ref>{{cite web|first=Calum|last=Slingerland|url=https://exclaim.ca/music/article/sum_41_share_new_song_a_death_in_the_family|title=Sum 41 Share New Song "A Death in the Family"|work=[[Exclaim!]]|date=June 11, 2019|access-date=December 19, 2023|archive-url=https://web.archive.org/web/20230419141715/https://exclaim.ca/music/article/sum_41_share_new_song_a_death_in_the_family|archive-date=April 19, 2023|url-status=live}}</ref> On June 18, 2019, "[[Never There (Sum 41 song)|Never There]]" was released as the third single, along with a video.<ref name="exclaim never there">{{cite web|first=Josiah|last=Hughes|url=https://exclaim.ca/amparticle/sum_41_share_somber_piano_ballad_for_single_parents_everywhere|title=Sum 41 Share Sombre Piano Ballad for Single Parents Everywhere|work=[[Exclaim!]]|date=June 18, 2019|access-date=July 18, 2019|archive-url=https://web.archive.org/web/20230415160941/https://exclaim.ca/amparticle/sum_41_share_somber_piano_ballad_for_single_parents_everywhere|archive-date=April 15, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Collin|last=Goeman|url=https://www.altpress.com/news/sum-41-new-song-never-there/|title=Sum 41 unplug for touching acoustic single "Never There"|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=June 18, 2019|access-date=June 18, 2019|archive-url=https://web.archive.org/web/20221023065602/https://www.altpress.com/sum-41-new-song-never-there/|archive-date=October 23, 2022|url-status=live}}</ref> On July 8, 2019, the band released "45 (A Matter of Time)" as the fourth single, along with a video.<ref>{{cite web|url=http://www.blabbermouth.net/news/sum-41-drops-protest-filled-music-video-for-45-a-matter-of-time/|title=Sum 41 Drops Protest-Filled Music Video for '45 (A Matter Of Time)'|work=[[Blabbermouth.net]]|date=July 8, 2019|access-date=July 8, 2019|archive-url=https://web.archive.org/web/20230530144033/https://blabbermouth.net/news/sum-41-drops-protest-filled-music-video-for-45-a-matter-of-time|archive-date=May 30, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Marvin|last=Dotiyal|url=https://www.altpress.com/sum-41-45-a-matter-of-time-video/|title=Sum 41 protest the government in "45 (A Matter Of Time)" video|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=July 8, 2019|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20230128050203/https://www.altpress.com/sum-41-45-a-matter-of-time-video/|archive-date=January 28, 2023|url-status=live}}</ref> On July 18, 2019, the band performed a medley of [[Metallica]] songs including "[[For Whom the Bell Tolls (Metallica song)|For Whom The Bell Tolls]]", "[[Enter Sandman]]", and "[[Master of Puppets (song)|Master Of Puppets]]" at [[Sirius XM]] studios.<ref>{{cite web|first=Greg|last=Kennelty|url=https://metalinjection.net/video/watch-sum-41-play-a-killer-metallica-medley-live-in-the-studio|title=Watch Sum 41 Play A Killer Metallica Medley Live In The Studio|work=Metal Injection|date=July 20, 2019|access-date=January 30, 2023|archive-url=https://web.archive.org/web/20230130072841/https://metalinjection.net/video/watch-sum-41-play-a-killer-metallica-medley-live-in-the-studio|archive-date=January 30, 2023|url-status=live}}</ref><ref>{{cite web|url=https://blabbermouth.net/news/watch-sum-41-perform-metallica-medley-at-siriusxm-studios|title=Watch Sum 41 Perform Metallica Medley At SiriusXM Studios|work=[[Blabbermouth.net]]|date=July 18, 2019|access-date=January 30, 2023|archive-url=https://web.archive.org/web/20230130072836/https://blabbermouth.net/news/watch-sum-41-perform-metallica-medley-at-siriusxm-studios|archive-date=January 30, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Alex|last=Darus|url=https://www.altpress.com/sum-41-metallica-medley/|title=Sum 41 honor Metallica with 5-minute medley jam session|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=July 18, 2019|access-date=January 30, 2023|archive-url=https://web.archive.org/web/20230130072840/https://www.altpress.com/sum-41-metallica-medley/|archive-date=January 30, 2023|url-status=live}}</ref>

In September 2019, the band started a North American tour called the ''Order in Decline Tour''.<ref name="Order in Decline Tour">{{cite magazine|first=Glenn|last=Rowley|url=https://www.billboard.com/music/rock/sum-41-chuck-anniversary-order-in-decline-tour-8530356/|title=Sum 41 Celebrating 15th Anniversary of 'Chuck' With Order in Decline Tour|magazine=[[Billboard (magazine)|Billboard]]|date=September 18, 2019|access-date=April 2, 2022|archive-url=https://web.archive.org/web/20230208082352/https://www.billboard.com/music/rock/sum-41-chuck-anniversary-order-in-decline-tour-8530356/|archive-date=February 8, 2023|url-status=live}}</ref><ref name="Order in Decline Tour2">{{cite magazine|first=Glenn|last=Rowley|url=https://www.altpress.com/sum-41-fall-tour-2019/|title=Sum 41 announce fall tour in support of 'Order In Decline'|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=July 29, 2019|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20230128050205/https://www.altpress.com/sum-41-fall-tour-2019/|archive-date=January 28, 2023|url-status=live}}</ref> On top of supporting ''Order in Decline'', the tour was also done in support of the 15th Anniversary of their studio album ''Chuck''.<ref name="Order in Decline Tour"/><ref name="15th Anniversary Chuck">{{cite web|url=https://www.kerrang.com/sum-41-to-celebrate-15th-anniversary-of-chuck-on-upcoming-tour|title=Sum 41 To Celebrate 15th Anniversary Of Chuck On Upcoming Tour|work=[[Kerrang!]]|date=September 19, 2019|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20230128050205/https://www.kerrang.com/sum-41-to-celebrate-15th-anniversary-of-chuck-on-upcoming-tour|archive-date=January 28, 2023|url-status=live}}</ref> From November to December 2019, the band went on a co-headlining tour with [[The Offspring]].<ref name="co-headlining tour The Offspring">{{cite web|first=Chad|last=Childers|url=https://loudwire.com/the-offspring-sum-41-2019-canadian-tour/|title=The Offspring + Sum 41 Announce Co-Headline Tour|work=[[Loudwire]]|date=August 19, 2019|access-date=April 3, 2022|archive-url=https://web.archive.org/web/20220404023442/https://loudwire.com/the-offspring-sum-41-2019-canadian-tour/|archive-date=April 4, 2022|url-status=live}}</ref><ref name="co-headlining tour The Offspring2">{{cite web|url=https://www.kerrang.com/the-offspring-and-sum-41-have-announced-a-co-headline-tour|title=The Offspring And Sum 41 Have Announced A Co-Headline Tour|work=[[Kerrang!]]|date=August 20, 2019|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20230320093528/https://www.kerrang.com/the-offspring-and-sum-41-have-announced-a-co-headline-tour|archive-date=March 20, 2023|url-status=live}}</ref> On May 28, 2021, the band released a version of "Catching Fire" featuring [[Nothing,Nowhere]], along with a music video.<ref>{{cite web|first=Frankie|last=Torok|url=https://newnoisemagazine.com/news-sum-41-drop-reimagined-version-of-catching-fire-feat-nothingnowhere/|title=News: Sum 41 Drop Reimagined Version of 'Catching Fire' Feat. nothing,nowhere|work=New Noise Magazine|date=June 2, 2021|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20210602203104/https://newnoisemagazine.com/news-sum-41-drop-reimagined-version-of-catching-fire-feat-nothingnowhere/|archive-date=June 2, 2021|url-status=live}}</ref><ref>{{cite web|first=Greta|last=Brereton|url=https://www.nme.com/news/music/sum-41-team-up-with-nothing-nowhere-for-powerful-catching-fire-rework-2951288|title=Sum 41 team up with nothing, nowhere for powerful 'Catching Fire' rework|work=[[NME]]|date=May 30, 2021|access-date=January 27, 2023|archive-url=https://web.archive.org/web/20230228081745/https://www.nme.com/news/music/sum-41-team-up-with-nothing-nowhere-for-powerful-catching-fire-rework-2951288|archive-date=February 28, 2023|url-status=live}}</ref><ref>{{cite web|first=Tamara|last=May|url=https://wallofsoundau.com/2021/05/28/sum-41-unveil-catching-fire-with-nothing-nowhere/|title=Sum 41 Unveil 'Catching Fire' with Nothing, Nowhere|work=Wall of Sound|date=May 28, 2021|access-date=May 30, 2021|archive-url=https://web.archive.org/web/20230225102923/https://wallofsoundau.com/2021/05/28/sum-41-unveil-catching-fire-with-nothing-nowhere/|archive-date=February 25, 2023|url-status=live}}</ref>

===2022–2025: ''Heaven :x: Hell'', final tour, Canadian Music Hall of Fame induction, and disbandment===
{{Main|Heaven :x: Hell}}
[[File:Sum 41 - 2023155152603 2023-06-04 Rock am Ring - Sven - 1D X MK II - 0257 - AK8I8513.jpg|thumb|left|280px|Sum 41 performing at [[Rock am Ring and Rock im Park|Rock im Park]] in 2023]]
On February 22, 2022, the band announced a U.S. tour with [[Simple Plan]] called the ''Blame Canada'' tour that ran from April to August 2022.<ref name="Blame Canada">{{cite web|url=https://blabbermouth.net/news/sum-41-and-simple-plan-announce-blame-canada-u-s-tour/|title=Sum 41 And Simple Plan Announce 'Blame Canada' Spring/Summer 2022 U.S. Tour|work=[[Blabbermouth.net]]|date=February 22, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230318001104/https://blabbermouth.net/news/sum-41-and-simple-plan-announce-blame-canada-u-s-tour/|archive-date=March 18, 2023|url-status=live}}</ref><ref name="Blame Canada 2">{{cite magazine|first=Taylor|last=Linzinmeir|url=https://www.altpress.com/news/simple-plan-sum-41-blame-canada-tour-dates/|title=Simple Plan and Sum 41 announce U.S. co-headlining Blame Canada tour|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=February 22, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20220403050949/https://www.altpress.com/news/simple-plan-sum-41-blame-canada-tour-dates/|archive-date=April 3, 2022|url-status=live}}</ref><ref name="Blame Canada 3">{{cite web|first=Matt|last=Bobkin|url=https://exclaim.ca/music/article/sum_41_and_simple_plans_blame_canada_tour_is_skipping_canada|title=Sum 41 and Simple Plan's Blame Canada Tour Is Skipping Canada|work=[[Exclaim!]]|date=February 22, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230202033304/https://exclaim.ca/music/article/sum_41_and_simple_plans_blame_canada_tour_is_skipping_canada|archive-date=February 2, 2023|url-status=live}}</ref>

On March 23, 2022, the band announced their eighth studio album, ''[[Heaven :x: Hell]]'', a double album.<ref name="Heaven and Hell">{{cite web|url=https://www.blabbermouth.net/news/sum-41-announces-heaven-and-hell-double-album/|title=Sum 41 Announces 'Heaven And Hell' Double Album|work=[[Blabbermouth.net]]|date=March 23, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20220416004733/https://www.blabbermouth.net/news/sum-41-announces-heaven-and-hell-double-album/|archive-date=April 16, 2022|url-status=live}}</ref><ref name="Heaven and Hell 2">{{cite magazine|first=Sam|last=Roche|url=https://www.guitarworld.com/news/sum-41-heaven-and-hell|title=Sum 41 announce half-punk, half-metal double album, Heaven and Hell|magazine=[[Guitar World]]|date=March 24, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20220404163809/https://www.guitarworld.com/news/sum-41-heaven-and-hell|archive-date=April 4, 2022|url-status=live}}</ref><ref name="Heaven and Hell 3">{{cite web|first=Rich|last=Hobson|url=https://www.loudersound.com/news/sum-41-are-releasing-a-metalpop-punk-double-album|title=Sum 41 are releasing a metal/pop-punk double album|work=Louder Sound|date=March 25, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20220404163747/https://www.loudersound.com/news/sum-41-are-releasing-a-metalpop-punk-double-album|archive-date=April 4, 2022|url-status=live}}</ref><ref name="Heaven and Hell 4">{{cite web|first=Greg|last=Kennelty|url=https://metalinjection.net/upcoming-releases/sum-41s-new-album-is-somewhat-of-a-nod-to-black-sabbath|title=Sum 41's New Album Is "Somewhat Of A Nod To Black Sabbath"|work=Metal Injection|date=April 6, 2022|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230920212102/https://metalinjection.net/upcoming-releases/sum-41s-new-album-is-somewhat-of-a-nod-to-black-sabbath|archive-date=September 20, 2023|url-status=live}}</ref> ''Heaven'' will return to the pop punk sound of the band's early career while ''Hell'' is a continuation of the band's more recent heavier metal sound.<ref name="Heaven and Hell"/><ref name="Heaven and Hell 2"/><ref name="Heaven and Hell 3"/><ref name="Heaven and Hell 4"/>

On October 8, 2022, during their ''Does This Look All Killer No Filler'' Tour, Sum 41 performed at the [[Unipol Arena]] in [[Bologna]], Italy, drawing over 14,000 attendees, the band's largest concert ever held in Europe.<ref>{{cite news|url=https://bologna.repubblica.it/cronaca/2022/10/09/news/sorpresa_il_punk_e_vivo_trionfo_sum41_a_bologna_il_miglior_pubblico_mai_avuto-369251858/|title=Sorpresa, il punk è vivo: trionfo Sum41 a Bologna. "Il miglior pubblico mai avuto"|newspaper=[[la Repubblica]]|date=October 9, 2022|access-date=November 20, 2024|archive-url=https://web.archive.org/web/20230629013026/https://bologna.repubblica.it/cronaca/2022/10/09/news/sorpresa_il_punk_e_vivo_trionfo_sum41_a_bologna_il_miglior_pubblico_mai_avuto-369251858/|archive-date=June 29, 2023|url-status=live|language=it}}</ref>

On February 22, 2023, it was announced that the band would be playing at [[When We Were Young (festival)|When We Were Young]] on October 22, 2023.<ref>{{cite web|first=Joe|last=DiVita|url=https://loudwire.com/when-we-were-young-festival-2023-lineup-green-day-blink-182/|title=When We Were Young Festival Adds Second 2023 Date|work=[[Loudwire]]|date=February 22, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230402022351/https://loudwire.com/when-we-were-young-festival-2023-lineup-green-day-blink-182/|archive-date=April 2, 2023|url-status=live}}</ref><ref>{{cite web|first=Alex|last=Young|url=https://consequence.net/2023/02/blink-182-and-green-day-to-headline-when-we-were-young-fest-2023/|title=Blink-182 and Green Day to Headline When We Were Young Fest 2023 [Updated]|work=[[Consequence (publication)|Consequence]]|date=February 22, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230302050049/https://consequence.net/2023/02/blink-182-and-green-day-to-headline-when-we-were-young-fest-2023/|archive-date=March 2, 2023|url-status=live}}</ref> On May 8, 2023, the band announced it would be disbanding following the release of ''Heaven :x: Hell'' and a worldwide headlining tour.<ref>{{cite web|first=Chris|last=Deville|url=https://www.stereogum.com/2222995/sum-41-breaking-up/news/|title=Sum 41 Are Calling It Quits|work=[[Stereogum]]|date=May 8, 2023|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230606053039/https://www.stereogum.com/2222995/sum-41-breaking-up/news/|archive-date=June 6, 2023|url-status=live}}</ref><ref>{{cite web|first=Philip|last=Trapp|url=https://loudwire.com/sum-41-break-up-announce-disbandment/|title=Sum 41 Announce That They Are Breaking Up|work=[[Loudwire]]|date=May 8, 2023|access-date=December 14, 2023|archive-url=https://web.archive.org/web/20230608061538/https://loudwire.com/sum-41-break-up-announce-disbandment/|archive-date=June 8, 2023|url-status=live}}</ref>

On September 19, 2023, it was announced that Whibley was hospitalized for [[COVID-19]],<ref>{{cite web |last=Whibley |first=Deryck |title=I'm back! |url=https://www.instagram.com/p/CyL1odoR1Xb/ |via=[[Instagram]] |access-date=November 11, 2023 |date=October 9, 2023 |quote=Of course I tested for COVID, and sure enough, I had COVID}}</ref> and [[pneumonia]], which led to the risk of [[heart failure]].<ref>{{cite magazine|first=Emlyn|last=Travis|url=https://ew.com/music/sum-41-deryck-whibley-hospitalized-pneumonia-risk-of-heart-failure/|title=Sum 41's Deryck Whibley hospitalized for pneumonia and at risk of heart failure, wife says|magazine=[[Entertainment Weekly]]|date=September 16, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231002232534/https://ew.com/music/sum-41-deryck-whibley-hospitalized-pneumonia-risk-of-heart-failure/|archive-date=October 2, 2023|url-status=live}}</ref><ref>{{cite web|first=Tom|last=Tapp|url=https://deadline.com/2023/09/sum-41-deryck-whibley-hospitalized-1235548695/|title=Sum 41 Lead Singer Deryck Whibley Hospitalized Thursday With Pneumonia, Now Recovering At Home|work=[[Deadline Hollywood|Deadline]]|date=September 16, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20230920052717/https://deadline.com/2023/09/sum-41-deryck-whibley-hospitalized-1235548695/|archive-date=September 20, 2023|url-status=live}}</ref> The next day, it was announced that he was responding well to his treatments and was discharged from the hospital.<ref>{{cite web|first=Chad|last=Childers|url=https://loudwire.com/sum-41-deryck-whibley-hospitalized-pneumonia-2023/|title=Sum 41's Deryck Whibley Discharged From Hospital After Treatment for Pneumonia|work=[[Loudwire]]|date=September 18, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231002232200/https://loudwire.com/sum-41-deryck-whibley-hospitalized-pneumonia-2023/|archive-date=October 2, 2023|url-status=live}}</ref> Despite being discharged from the hospital, Whibley stated that he was "not out of the woods yet" but is "staying positive".<ref>{{cite magazine|first=Kirsty|last=Hatcher|url=https://people.com/sum-41-deryck-whibley-health-update-pneumonia-hospital-7972141|title=Sum 41's Deryck Whibley Discharged From Hospital After Treatment for Pneumonia|magazine=[[People (magazine)|People]]|date=September 20, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231002232344/https://people.com/sum-41-deryck-whibley-health-update-pneumonia-hospital-7972141|archive-date=October 2, 2023|url-status=live}}</ref><ref>{{cite magazine|first=Gil|last=Kaufman|url=https://www.billboard.com/music/rock/sum-41-deryck-whibley-health-update-pneumonia-hospitalization-1235416429/|title=Sum 41's Deryck Whibley Gives Health Update After Scary Pneumonia Hospitalization: 'Not Out of the Woods Yet'|magazine=[[Billboard (magazine)|Billboard]]|date=September 20, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231001090055/https://www.billboard.com/music/rock/sum-41-deryck-whibley-health-update-pneumonia-hospitalization-1235416429/|archive-date=October 1, 2023|url-status=live}}</ref> On September 24, the band launched a Laylo website, hinting fans that "Something is coming..."<ref>{{cite web|url=https://laylo.com/sum41|title=Sum 41|website=Laylo|access-date=September 24, 2023}}</ref>

The first single of the album, titled "[[Landmines (song)|Landmines]]", was released on September 27, 2023, along with a music video. The song is a return to the pop-punk sound of the band's early career, meaning it will be part of the ''Heaven'' side on the upcoming album. The band also announced that they signed with [[Rise Records]].<ref>{{cite web|first=Megan|last=LaPierre|url=https://exclaim.ca/music/article/sum_41_announce_new_single_landmines_coming_this_week|title=Sum 41 Announce New Single "Landmines" Coming This Week|work=[[Exclaim!]]|date=September 25, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231101012220/https://exclaim.ca/music/article/sum_41_announce_new_single_landmines_coming_this_week|archive-date=November 1, 2023|url-status=live}}</ref><ref>{{cite web|url=https://blabbermouth.net/news/sum-41-announces-new-single-landmines|title=Sum 41 Announces New Single "Landmines"|work=[[Blabbermouth.net]]|date=September 25, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231004184325/https://blabbermouth.net/news/sum-41-announces-new-single-landmines|archive-date=October 4, 2023|url-status=live}}</ref> The second single, "Rise Up", was released on December 12, 2023, along with a music video.<ref name="Rise Up">{{cite web|first=Ali|last=Shutler|url=https://www.nme.com/news/music/sum-41-tell-us-about-aggressive-final-album-heaven-x-hell-its-the-perfect-way-to-go-out-3557006|title=Sum 41 tell us about "aggressive" final album ''Heaven :x: Hell'': "It's the perfect way to go out"|work=[[NME]]|date=December 12, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231212145120/https://www.nme.com/news/music/sum-41-heaven-x-hell-deryck-whibley-new-album-interview-life-death-rise-up-3557006|archive-date=December 12, 2023|url-status=live}}</ref><ref name="Rise Up2">{{cite web|url=https://blabbermouth.net/news/sum-41-announces-details-of-final-double-album-heaven-x-hell|title=Sum 41 Announces Details Of Final Double Album ''Heaven :x: Hell''|work=[[Blabbermouth.net]]|date=December 12, 2023|access-date=December 18, 2023|archive-url=https://web.archive.org/web/20231212145117/https://blabbermouth.net/news/sum-41-announces-details-of-final-double-album-heaven-x-hell|archive-date=December 12, 2023|url-status=live}}</ref> The song is in the style of the band's more recent heavier metal sound, meaning it will be part of the ''Hell'' side on the upcoming album.<ref name="Rise Up"/><ref name="Rise Up2"/> The album was released on March 29, 2024.<ref name="Rise Up"/><ref name="Rise Up2"/>

On January 16, 2024, the band announced dates for their [[Tour of the Setting Sum|final tour]], with their last show taking place on January 30, 2025 at [[Scotiabank Arena]] in [[Toronto]].<ref>{{cite magazine|first=Sadie|last=Bell|url=https://people.com/sum-41-announces-final-concerts-tour-of-the-setting-sum-dates-tickets-8430575|title=Sum 41 Announces Final Tour Dates and Last-Ever Show Ahead of Their Separation as a Band|magazine=[[People (magazine)|People]]|date=January 16, 2024|access-date=February 11, 2024|archive-url=https://web.archive.org/web/20240118014344/https://people.com/sum-41-announces-final-concerts-tour-of-the-setting-sum-dates-tickets-8430575|archive-date=January 18, 2024|url-status=live}}</ref><ref name="sumfinaltour">{{cite web|url=https://blabbermouth.net/news/sum-41-announces-final-headlining-world-tour-tour-of-the-setting-sum|title=Sum 41 Announces Final Headlining World Tour 'Tour Of The Setting Sum'|work=[[Blabbermouth.net]]|date=January 16, 2024|access-date=January 16, 2024|archive-url=https://web.archive.org/web/20240116154556/https://blabbermouth.net/news/sum-41-announces-final-headlining-world-tour-tour-of-the-setting-sum|archive-date=January 16, 2024|url-status=live}}</ref> The band played "Landmines" on ''[[Jimmy Kimmel Live!]]'' on February 8, 2024.<ref>{{cite web|first=Spencer|last=Kaufman|url=https://consequence.net/2024/02/sum-41-landmines-jimmy-kimmel-live/|title=Sum 41 Perform New Single "Landmines" on Jimmy Kimmel Live: Watch|work=[[Consequence (publication)|Consequence]]|date=February 9, 2024|access-date=February 11, 2024|archive-url=https://web.archive.org/web/20240210021806/https://consequence.net/2024/02/sum-41-landmines-jimmy-kimmel-live/|archive-date=February 10, 2024|url-status=live}}</ref><ref>{{cite web|url=https://blabbermouth.net/news/watch-sum-41-performs-landmines-on-jimmy-kimmel-live|title=Watch: Sum 41 Performs 'Landmines' On 'Jimmy Kimmel Live!'|work=[[Blabbermouth.net]]|date=February 9, 2024|access-date=February 11, 2024|archive-url=https://web.archive.org/web/20240210025125/https://blabbermouth.net/news/watch-sum-41-performs-landmines-on-jimmy-kimmel-live|archive-date=February 10, 2024|url-status=live}}</ref> On February 22, 2024, the band released "Waiting on a Twist of Fate" as the album's third single.<ref>{{cite magazine|first=Amanda|last=Hatfield|url=https://www.altpress.com/sum-41-waiting-on-a-twist-of-fate-video-watch/|title=Sum 41 share "Waiting On A Twist of Fate" from final album Heaven x Hell|magazine=[[Alternative Press (magazine)|Alternative Press]]|date=February 22, 2024|access-date=April 1, 2024|archive-url=https://web.archive.org/web/20240307151525/https://www.altpress.com/sum-41-waiting-on-a-twist-of-fate-video-watch/|archive-date=March 7, 2024|url-status=live}}</ref><ref>{{cite web|first=Michael|last=Major|url=https://www.broadwayworld.com/bwwmusic/article/Sum-41-Unleash-New-Single-Waiting-On-A-Twist-Of-Fate-20240222|title=Sum 41 Unleash New Single 'Waiting On A Twist Of Fate'|work=[[BroadwayWorld]]|date=February 22, 2024|access-date=April 1, 2024|archive-url=https://web.archive.org/web/20240222215105/https://www.broadwayworld.com/bwwmusic/article/Sum-41-Unleash-New-Single-Waiting-On-A-Twist-Of-Fate-20240222|archive-date=February 22, 2024|url-status=live}}</ref> A music video for "Dopamine" was released on March 29, 2024, the same day as the album.<ref>{{cite magazine|url=https://heavymag.com.au/sum-41-drop-new-album-release-single-dopamine/|title=Sum 41 Drop New Album, release Single 'Dopamine'|magazine=Heavy Mag|date=March 29, 2024|access-date=March 29, 2024|archive-url=https://web.archive.org/web/20240601055957/https://heavymag.com.au/sum-41-drop-new-album-release-single-dopamine/|archive-date=June 1, 2024|url-status=live}}</ref>

In a 2025 interview with The Canadian Press for Sum 41's final Canadian tour dates, McCaslin and Baksh said they learned of the group's disbandment through an email sent by Whibley to all of the members in early 2023.<ref name="Canadian Press 2025">{{cite web|first=David|last=Friend|url=https://www.thecanadianpressnews.ca/entertainment/i-guess-i-thought-wed-never-end-sum-41-on-coming-to-terms-with-their/article_bf448839-c4f1-5572-9003-9ecb5365d74b.html|title='I guess I thought we'd never end': Sum 41 on coming to terms with their breakup|work=The Canadian Press|date=January 29, 2025|access-date=February 28, 2025|archive-url=https://web.archive.org/web/20250129184408/https://www.thecanadianpressnews.ca/entertainment/i-guess-i-thought-wed-never-end-sum-41-on-coming-to-terms-with-their/article_bf448839-c4f1-5572-9003-9ecb5365d74b.html|archive-date=January 29, 2025|url-status=live}}</ref> Both said they were shocked and it took each of them speaking directly with Whibley by phone to understand the decision.<ref name="Canadian Press 2025"/> Whibley described years of finding excuses to keep Sum 41 together and only reaching certainty on his decision to break up the band after returning to a tour life after the [[COVID-19 pandemic]] closures.<ref name="Canadian Press 2025"/>

On March 28, 2025, the band released a cover of "[[Sleep Now in the Fire]]" by [[Rage Against the Machine]].<ref>{{cite magazine|first=Emily|last=Garner|url=https://www.kerrang.com/sum-41-cover-rage-against-the-machine-sleep-now-in-the-fire-spotify-singles-deryck-whibley-pop-punk-rap-metal|title=Sum 41 cover Rage Against The Machine for Spotify Singles|magazine=[[Kerrang!]]|date=March 28, 2025|access-date=April 2, 2025|archive-url=https://archive.today/20250402005250/https://www.kerrang.com/sum-41-cover-rage-against-the-machine-sleep-now-in-the-fire-spotify-singles-deryck-whibley-pop-punk-rap-metal|archive-date=April 2, 2025|url-status=live}}</ref> The band was inducted into the [[Canadian Music Hall of Fame]] on March 30, 2025 during the 54th annual [[Juno Awards of 2025|Juno Awards]].<ref>{{cite web|url=https://www.cbc.ca/music/junos/news/sum-41-canadian-music-hall-of-fame-induction-1.7391363|title=Sum 41 to be inducted into the Canadian Music Hall of Fame|work=[[CBC Music]]|date=November 22, 2024|access-date=November 23, 2024|archive-url=https://web.archive.org/web/20241123030700/https://www.cbc.ca/music/junos/news/sum-41-canadian-music-hall-of-fame-induction-1.7391363|archive-date=November 23, 2024|url-status=live}}</ref> Founding drummer Steve Jocz was also inducted but did not attend the ceremony.<ref>{{cite AV media|url=https://www.youtube.com/watch?v=winakRe0oEI|title=My Canadian Music Hall Of Fame Award Has Arrived!|publisher=Stevo32Drums|date=April 8, 2025|access-date=May 11, 2025|via=YouTube}}</ref> After the induction, the band released their final music video for the song "Radio Silence" on April 1, 2025.<ref>{{cite magazine|first=James|last=Wilson-Taylor|url=https://rocksound.tv/news/sum-41-release-farewell-music-video-for-radio-silence|title=Sum 41 Release Farewell Music Video For 'Radio Silence'|magazine=[[Rock Sound]]|date=April 1, 2025|access-date=April 2, 2025|archive-url=https://archive.today/20250402004858/https://rocksound.tv/news/sum-41-release-farewell-music-video-for-radio-silence|archive-date=April 2, 2025|url-status=live}}</ref>

The band's agent [[Dave Shapiro (music agent)|Dave Shapiro]] was killed in [[2025 San Diego Cessna Citation II crash|a plane crash]] in [[San Diego]] on May 22, 2025 along with former [[The Devil Wears Prada (band)|The Devil Wears Prada]] drummer [[Daniel Williams (musician)|Daniel Williams]].<ref>{{cite web|url=https://www.bbc.com/news/articles/c0mr844xl42o|title=Dave Shapiro: Sum 41 music agent killed in San Diego plane crash|work=[[BBC]]|date=May 22, 2025|access-date=May 24, 2025|archive-url=https://web.archive.org/web/20250522171401/https://www.bbc.com/news/articles/c0mr844xl42o|archive-date=May 22, 2025|url-status=live}}</ref><ref>{{cite magazine|first1=David|last1=Chiu|first2=Brian|last2=Brant|url=https://people.com/former-devil-wears-prada-drummer-and-music-agent-killed-private-plane-crashed-san-diego-neighborhood-11740582|title=Former The Devil Wears Prada Drummer and Music Agent Killed When Their Private Plane Crashed into Neighborhood|magazine=[[People (magazine)|People]]|date=May 22, 2025|access-date=May 24, 2025|archive-url=http://archive.today/2025.05.23-074753/https://people.com/former-devil-wears-prada-drummer-and-music-agent-killed-private-plane-crashed-san-diego-neighborhood-11740582|archive-date=May 23, 2025|url-status=live}}</ref>