Theatre Brook (シアター・ブルック Shiatā Burukku) is a Japanese funk rock band that made its début in 1986. The band's current line-up are: Taiji Sato (vocals & electric guitar), Takashi Nakajo (bass), Takashi Numazawa (drums), and Emerson Kitamura (keyboard). They have been signed with Epic Records since 1995.
Taiji Sato (佐藤 タイジ,Sato Taiji, born 26 January 1967 in Tokushima, Japan) – lead vocals, lead guitar
He formed the music group "Young Miracle" with Kō Machida in 2002.
Takashi Nakajo (中條 卓,Nakajo Takashi, born 18 January 1965 in Kanagawa, Japan) – bass
He is also active in the band "couch".
Emerson Kitamura (エマーソン北村,born 17 May 1962) – keyboards
ex- Mute Beat, ex-Jagatara
He works as a session musician with various musicians like Ego-Wrappin', Kazuyoshi Saito, and Leyona.
Takashi Numazawa (沼澤 尚,Numazawa Takashi, born 26 January 1967 in Shinjuku, Tokyo, Japan) – drums
He works as a session musician with various musicians like Yuko Ando, Chage, Miki Furukawa, Ken Hirai, Yōsui Inoue, Hiromi Iwasaki, Toshiki Kadomatsu, Ryuichi Kawamura, Inoran, Tourbillon, Kiyoharu, Leyona, Noriyuki Makihara, Kazufumi Miyazawa (AFROSICK), Mika Nakashima, Maki Ohguro, Tamio Okuda, Taeko Onuki, Ai Otsuka, Ami Ozaki, Quruli, Ringo Sheena, Sing Like Talking, Shikao Suga, Ayano Tsuji, Masayoshi Yamazaki, Akiko Yano, Minako Yoshida, YUI.
Because he studied in PIT (Percussion Institute of Technology) in L.A. in his youth, he has worked with many American musicians such as Chaka Khan, Bobby Womack, Al McKay, Verdine White, The Emotions, Hiram Bullock, Will Lee, Randy Brecker, Robben Ford, Jeff Berlin.