Editing Underoath (section)

=== Departure of Aaron Gillespie and ''Ø (Disambiguation)'' (2010–2011) ===
{{Main article|Ø (Disambiguation)}}
During a late 2009 interview, guitarist Timothy McTague stated that the band had "just started writing songs that may be included on the next record", and that they are hoping to enter the studio late summer or early fall 2010. Underoath is set to release their live album ''Live at Koko'' exclusively to their UK audience via their UK merchandise site.<ref>{{cite web |url=http://underoath.sandbag.uk.com/Store/DisplayItems.html |title=Underoath |publisher=Underoath.sandbag.uk.com |date=March 11, 2010 |access-date=October 16, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20110831214120/http://underoath.sandbag.uk.com/Store/DisplayItems.html |archive-date=August 31, 2011  }}</ref> On February 25, 2010, Underoath stated they were finishing writing their new album.

On April 5, 2010, the band announced the departure of their final founding member, drummer and vocalist, [[Aaron Gillespie]].<ref name="Aaron Gillespie Leaves Underoath"/><ref>{{cite web |url=http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=1943559&blogId=532247560 |title=UNDEROATH AND AARON AMICABLY PART WAYS - underOATH's MySpace Blog &#124; |access-date=April 7, 2010 |url-status=dead |archive-url=https://web.archive.org/web/20100408164858/http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=1943559&blogId=532247560 |archive-date=April 8, 2010 }}</ref> Aaron played his final show with the band in [[Milan]], [[Italy]], on April 6.<ref>{{cite web |url=http://www.soundspike.com/story2/21851/underoath-drummer-aaron-gillespie-leaves-band/ |title=Underoath drummer Aaron Gilliespie leaves band |publisher=Soundspike |date=April 6, 2010 |access-date=March 9, 2014 |archive-url=https://web.archive.org/web/20140309202650/http://www.soundspike.com/story2/21851/underoath-drummer-aaron-gillespie-leaves-band/ |archive-date=March 9, 2014 |url-status=dead  }}</ref>

On May 10, 2010, through their official MySpace blog, Underoath announced that they will be entering the studio on May 24 to record their follow up to ''Lost in the Sound of Separation'', which was aimed to be released later that year, with producers Matt Goldman (''Lost in the Sound of Separation'' and ''Define the Great Line'') and Jeremy SH Griffith.<ref>{{cite web |url=http://blogs.myspace.com/index.cfm?fuseaction=blog.view&friendId=1943559&blogId=534154965 |title=New Record and Drummer! van Underoath op Myspace |publisher=Blogs.myspace.com |date=October 7, 2011 |access-date=October 16, 2011 |url-status=dead |archive-url=https://web.archive.org/web/20090207065936/http://blogs.myspace.com/index.cfm?fuseaction=blog.view |archive-date=February 7, 2009  }}</ref> Following the departure of Gillespie, Underoath recruited ex-[[Norma Jean (band)|Norma Jean]] drummer [[Daniel Davison]] for the recording of their new album.<ref>{{cite web| last = Heisel| first = Scott| title = Former Norma Jean drummer Daniel Davison joins Underoath| work = [[Alternative Press (music magazine)|Alternative Press]]| date = May 10, 2010| url = http://www.altpress.com/news/underoathnewdrummer.htm| access-date = May 10, 2010| archive-url = https://web.archive.org/web/20100609145711/http://www.altpress.com/news/underoathnewdrummer.htm| archive-date = June 9, 2010| url-status = dead| df = mdy-all}}</ref> Davison's first tour with the band was "The Cool Tour" featuring [[As I Lay Dying (band)|As I Lay Dying]] and [[Blessthefall]]. The band then announced that the new album, ''[[Ø (Disambiguation)]]'', will be released on November 9, 2010, through Tooth & Nail Records.<ref name="APaug312010">{{cite web| last = Karan| first = Tim| title = Exclusive: Underoath reveal release date for "Disambiguation"| work = [[Alternative Press (music magazine)|Alternative Press]]| date = August 31, 2010| url = http://www.altpress.com/news/entry/underoath_announce_album_title_target_release_date/| access-date = August 31, 2010| archive-url = https://web.archive.org/web/20100902013835/http://www.altpress.com/news/entry/underoath_announce_album_title_target_release_date/| archive-date = September 2, 2010| url-status = dead| df = mdy-all}}</ref><ref name="alter1">{{Cite web|url=http://www.alterthepress.com/2010/08/underoath-new-album-release-date-pushed.html|access-date=September 1, 2010|newspaper=Alter the Press|first=Jon|last=Abelson|title=Underoath New Album Release Date Pushed Back}}</ref> On September 9, 2010, it was announced that Underoath had signed to [[Roadrunner Records]] for worldwide distribution outside of the US and Canada.<ref>{{cite web| title = Roadrunner Welcomes Underoath| work = [[Roadrunner Records]] (United Kingdom)| date = September 9, 2010| url = http://roadrunnerrecords.co.uk/page/News?&news_page=&news_id=100340| access-date = September 9, 2010}}</ref>

On September 14, 2010, the band held a listening party for ''Ø (Disambiguation)'' at Swinghouse Studios in Los Angeles. Danny Sugimoto of spitInthemud.com remarked that the album "feels darker and more chaotic than ones prior, yet with a tasteful sense of calm mixed within."<ref>{{cite web |url=http://mindequalsblown.net/2010/09/early-review-underoath-%C3%B8-disambiguation/ |title=Early Review – Underoath: Ø (Disambiguation) |publisher=Mind Equals Blown |access-date=October 16, 2011 |archive-date=June 30, 2012 |archive-url=https://archive.today/20120630150803/http://mindequalsblown.net/2010/09/early-review-underoath-%C3%B8-disambiguation/ |url-status=usurped }}</ref>

Underoath embarked on their headlining November tour on the 2nd of the month.<ref>[http://www.theprp.com/2010/09/20/news/underoath-to-tour-with-a-day-to-remember-the-word-alive-and-more-in-november/ Underoath to tour with A Day to Remember, The Word Alive and more in November] The PRP</ref> On November 23, vocalist, [[Spencer Chamberlain]] began to suffer from [[Foodborne illness|foodborne disease]]. His position in Underoath was substituted by [[Tyler Smith (musician)|Tyler Smith]] of [[The Word Alive]] for the show scheduled that day.

On October 18, 2011, a compilation, ''Play Your Old Stuff'', was released, containing three previously released albums: ''[[The Changing of Times]]'', ''[[They're Only Chasing Safety]]'' and ''[[Define the Great Line]]'', along with new artwork.<ref>{{cite web| title = UNDEROATH RELEASE 'PLAY YOUR OLD STUFF' 10/18| work = Underoath| date = September 22, 2011| url = http://www.underoath777.com/blog/underoath-release-play-your-old-stuff-1018| access-date = July 13, 2012| url-status = dead| archive-url = https://web.archive.org/web/20120730000213/http://www.underoath777.com/blog/underoath-release-play-your-old-stuff-1018| archive-date = July 30, 2012| df = mdy-all}}</ref>