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Buono! is a group of the Hello! Project
The members are:
Airi Suzuki was a member of the J-pop group, C-ute. Miyabi Natsuyaki and Momoko Tsugunga were members of another J-pop group, Berryz Koubou. They sing all of the songs for the first season of an anime called "Shugo Chara". During the second season, Buono! only sings the ending songs, the opening songs where from then, were sung by a group that sings specifically for Shugo Chara named "Shugo Chara Egg".