The Carnabeats
Keikichi Usui (vocal, moderator, tambourine, maracas), (January 2, 1946 -), Born in Kokurakita Ward, Withdrew from the band in April 1969, He made his solo debut in the early 1970s under the names of Kei Aoyama and Masami Aoyama, Nickname: Ponta (ポンタ, Ponta).