- January 7: Ishida Ayumi is born.
- April 21: Takagi Sayuki is born.
- May 7: Maeda Irori is born.
- June 4: Nakanishi Kana is born.
- July 1: Kaneko Rie is born.
- July 3: Hashimoto Nagisa is born.
- July 7: Ikuta Erina is born.
- August 31: Heike Michiyo wins the Sharam Q Rock Vocalist Audition.
- September 7: Morning Musume is formed.
- October 14: Yamaki Risa is born.
- November 19: Arai Manami and Kosuga Fuyuka are born.
- November 23: Takeuchi Akari is born.
- December 24: Tanaka Karen is born.
- December 27: Inaba Manaka is born.
- April to August: ASAYAN Sharam Q Produced Josei Rock Vocalist Audition (ASAYAN シャ乱Qブロデュース 女性ロックヴォーカリスト オーディション; ASAYAN Sharam Q Produced Female Rock Vocalist Audition)
- September 14: Morning Musume appeared on ASAYAN and Tsunku revealed their group name. The official birth of "Morning Musume."
|1987 ・・ 1996 ・ 1997 ・ 1998 ・・ 2007|