Eight-year-old drummer Yoyoka has been famous for her exceptional drumming skill, especially by the one for the cover video of Led Zeppelin's "Good Times Bad Times," which is booming worldwide. The video has been highly-acclaimed by great acts such as Robert Plant and Chad Smith.

Kaneaiyoyoka is a band formed by her and her family, and "YO-YO-YO?" is a new mini-album by them, featuring great guests such as Takanobu Masuda, a keyboardist famous for his supporting work for B'z. In this mini-album, Yoyoka even composed "Happy," and sing it by herself.