Producer Tsunku even referred to her as a failure, but was curious to see how the addition of such a member would cause Morning Musume to change and grow[3] She debuted on the group's thirteenth single, "Mr. Moonlight (Ai no Big Band)," released on October 31, 2001.
Along with fellow member Risa Niigaki and Melon Kinenbi's Ayumi Shibata Konno was put into Tanpopo as the third generation.
In July of the same year, she was added into Japanese idol pop band Country Musume with Miki Fujimoto.
[8] She also made a guest appearance in a drama, Kochira Hon Ikegami Sho 2 that year, as a hit-and-run victim's sister.
[9] In late 2004, Tsunku's chose to give Konno the main vocals for "Namida ga Tomaranai Hōkago".
Project's 2006 sports festival in the time of six minutes and thirteen seconds, getting her the MVP award.
It was stated that Konno would remain an active member within the agency and Ongaku Gatas while continuing her university studies.
[21] She performed at the Hello Pro Award '09 Elder Club Sotsugyo Kinen Special concert on February 1, 2009.
[citation needed] Konno and fellow former 5th generation member Makoto Ogawa made a special appearance at Morning Musume's Autumn Tour the day before Ai Takahashi's graduation.