Amatsuki

Amatsuki (天月) is an utaite with a cheerful shota voice. He freely covers songs, not worrying if he hits wrong notes. However, as shown in his "Nijigen Dream Fever" MV, he can sing with surprising power and seriousness. He is also noted for his "elmo" voice. He's 30 years old, but still looks like a teenager and behaves somewhat childishly, as seen in his tweets and his blog profile. (Source: Utaite Wiki)