Oomori Seiko (大森靖子) is a Japanese singer-songwriter who began her career in 2008. She is also the former lead singer, guitarist, and keyboardist for the band Oomori Seiko & THE Pink Tokarev. She is currently a member of her self-produced idol group, ZOC.
Oomori loved singing since she was a child and often imitated SPEED, Morning Musume, and Hamasaki Ayumi when she saw them on TV, but she did not believe she could become a singer if she was not cute. When Oomori entered elementary school, her parents enrolled her in painting, calligraphy, and piano lessons. She then went to a private middle school and high school, where she was bullied and distanced by others for being strange. Oomori graduated from high school in 2006 and decided to enter Musashino Art University in Tokyo.
When she was 19, Oomori came across the live house Muryoku Muzenji, which showed her the way of music and allowed her to express her interests without judgement. She eventually quit university in 2007 to instead pursue a music career.
In 2014, Oomori made her major debut under avex trax on March 14 and also began writing songs for other artists.
In August 2014, Oomori got married. On October 10, 2015 she gave birth to her first child, a son weighing 3082 grams.
In September 2018, she became a member and the producer of the idol group, ZOC. In October 2020, ZOC would sign with the record label avex trax, and Oomori's self-founded independent agency, TOKYO PINK.
- Name: Oomori Seiko (大森靖子)
- Birthdate: September 18, 1987
- Birthplace: Matsuyama, Ehime, Japan
- Western Zodiac: Virgo
- Eastern Zodiac: Rabbit
- Mugen Climax (lyrics, composition)
- true love true real love (lyrics, composition)
- Arienai Yuuenchi (lyrics, composition)
- EIGA wo Mite yo (lyrics, composition)
- SHIBUYA no Fabulous (lyrics, composition)
- Barabara WONDER (lyrics)
- Shin・juku (lyrics, composition)
- OK! Ikimakucchae (lyrics)
- Shiroi Hane (lyrics)
- KILAi STAR LIGHT (lyrics, composition)
- Sayutopia (lyrics)
- AGE1-ROOM (lyrics, composition)
- Shunkan Watcher (lyrics)
- WHO IS BABY (lyrics, composition)
- DESTINY ~Tapioka Mode~ (lyrics)
- DESTINY ~Chocolate Mode~ (lyrics)
- Otome Slump (lyrics)
- Ta・ri・na・i❤LOVELY (lyrics, composition)
- ENDLESS HOME (lyrics, composition)
- NEW WONDER SEASON (lyrics, composition)
- (Kari) wa Kaesuze ☆ be your soul (lyrics)
- !!!!!!! (lyrics, composition)
- KOMEDIUM (lyrics, composition)
- Shiroi HeLLO gOOdbye (lyrics, composition)
- The lyrics of "IDOL SONG" from Oomori's 2017 album kitixxxgaia is made up of the catchphrases of several J-pop idols including those from Hello! Project. There are four by Michishige Sayumi, three by Ikuta Erina, two by Tsugunaga Momoko, one by Tanaka Reina, as well as Morning Musume's "Ganbatte ikimasshoi!" as the last line.
- She was one of the three artists that chose the tracks for the Hello! Project no Zenkyoku kara Atsumechaimashita! Vol. 6 album.
- "元モー娘。道重さゆみ 歌手・大森靖子のツイートきっかけに「会いたい」続々" (in Japanese). Tokyo Sports. 2016-03-11.
- "【ブレーク予報】大森靖子、目標２年「ファンと一体」武道館" (in Japanese). Hochi Sports. 2014-11-03. (Archived)
- "ブレイクスルー File.19 音楽は魔法ではない でも音楽は… ―シンガーソングライター 大森靖子―" (in Japanese). NHK Fukushi Portal Heart Net. 2014-12-01.
- "世界を変えるアーティストを! NEW SENSATION!" (in Japanese). OTOTOY. 2013-03-25.
- "大森靖子＆THEピンクトカレフが解散" (in Japanese). natalie. 2015-02-06.
- "大森靖子＆THEピンクトカレフとどめの一発、新宿LOFTで“最終公演”" (in Japanese). natalie. 2015-05-18.
- "大森靖子、エイベックスからメジャーデビュー決定" (in Japanese). natalie. 2014-03-14.
- "大森靖子が第１子男児を出産、１６年２月ワンマンライブ開催も発表" (in Japanese). Sponichi. 2015-10-10.
- "“支配領域”新グループZOC始動、共犯者・大森靖子の「生誕祭」に登場" (in Japanese). natalie. 2018-09-18.
- "" (in Japanese). natalie. 2019-01-20.
- "大森靖子「IDOL SONG」Music Video" (in Japanese). Oomori Seiko Youtube Channel (via YouTube). 2017-08-23.
- "Seiko Oomori Cheers on Idols Using Their Own Words in “IDOL SONG”!" Tokyo Girls' Update. 2017-08-30.