Editing Morning Musume (section)

===1999: Commercial success with "Love Machine" and the 3rd Generation===
The group released its fourth single "[[Memory Seishun no Hikari]]" in early 1999,<ref>{{Cite web|url=http://www.up-front-works.jp/discography/zetima/29/s_04/index.html|archive-url=https://web.archive.org/web/20130609150417/http://www.up-front-works.jp/discography/zetima/29/s_04/index.html|url-status=dead|title=Up-Front Works Discography – Memory Seishun no Hikari|archive-date=June 9, 2013}}</ref> reaching number two on [[Oricon]], second to [[Glay]]'s "[[Winter, Again]]" which had first week sales of 955,780 copies.{{Citation needed|date=July 2023}}

The song features rap passages by L The Headtoucha and intense vocal harmonization by the group's members. This was [[Asuka Fukuda]]'s last single with Morning Musume; Asuka claimed that she was leaving in order to focus on her studies, only to drop out of school soon after.

"[[Manatsu no Kōsen]]"<ref>{{Cite web|url=http://www.up-front-works.jp/discography/zetima/29/s_05/index.html|archive-url=https://web.archive.org/web/20130609190507/http://www.up-front-works.jp/discography/zetima/29/s_05/index.html|url-status=dead|title=Up-Front Works Discography – Manatsu no Kōsen|archive-date=June 9, 2013}}</ref> was released in May and went to number three on the charts. Their sixth single, "[[Furusato (Morning Musume song)|Furusato]]",<ref>{{Cite web|url=http://www.up-front-works.jp/discography/zetima/29/s_06/index.html|archive-url=https://web.archive.org/web/20140116191855/http://www.up-front-works.jp/discography/zetima/29/s_06/index.html|url-status=dead|title=Up-Front Works Discography – Furusato|archive-date=January 16, 2014}}</ref> was released in July.

''[[Second Morning]]''<ref>{{Cite web|url=http://www.up-front-works.jp/discography/zetima/29/a_03/index.html|archive-url=https://web.archive.org/web/20140116180205/http://www.up-front-works.jp/discography/zetima/29/a_03/index.html|url-status=dead|title=Up-Front Works Discography – Second Morning|archive-date=January 16, 2014}}</ref> was released in July 1999, and contained the singles "Daite Hold on Me!", "Memory Seishun no Hikari", "Manatsu no Kōsen", and "Furusato". "Daite Hold on Me!" and "Manatsu no Kōsen" were remixed.

Tsunku held auditions for the third generation of Morning Musume, and [[Maki Goto]] was added. Goto was 13, the youngest member of Morning Musume at the time. The group's seventh single, "[[Love Machine (Morning Musume song)|Love Machine]]",<ref>{{Cite web|url=http://www.up-front-works.jp/discography/zetima/29/s_07/index.html|archive-url=https://web.archive.org/web/20140420122027/http://www.up-front-works.jp/discography/zetima/29/s_07/index.html|url-status=dead|title=Up-Front Works Discography – Love Machine|archive-date=April 20, 2014}}</ref> sold 1,760,000 copies, making it a major hit; it is still their highest-selling single as of 2012. It was Maki Goto's first single and Aya Ishiguro's last.

Goto was paired with [[Kei Yasuda]] and [[Sayaka Ichii]] to form the subgroup [[Petitmoni]] (also known as Pucchi Moni). Petitmoni's first single, "[[Chokotto Love]]", sold over 1,123,610 copies.