Takebuchi Kei (竹渕慶) is a Japanese singer. She is the main vocalist and percussionist/pianist of the group Goose house and a member of the group Tetra+. She has been with Goose house since 2010, and she made her solo debut in 2013.
- Name: Takebuchi Kei (竹渕慶)
- Nickname: Kei-chan (慶ちゃん)
- Birthday: July 11, 1991
- Birthplace: Tokyo, Japan
- Favorite Artists: Utada Hikaru, Celine Dion, Shiina Ringo & Tokyo Jihen
- [2014.03.05] KEI's 8
- [2013.09.23] Maika ~my flower~ (舞花 ～my flower～)
- She does most of the vocals in Goose house.
- She is fluent in English thanks to living in the U.S. for a short time as a child.
- She is one of the founding members of Goose house.