Yamada Sisters and Baby Boo

Baby Boo is a Japanese vocal group celebrated for their captivating a cappella performances and rich harmonies. Originating in Japan, they are known for their diverse repertoire, encompassing Japanese folk songs, children's songs, and popular melodies. They gained recognition from the legendary Japanese chorus group Bonny Jacks. Notable releases include "Love Letters" and "ごめんね...ありがとう." They are widely appreciated for their unique 'voice-only' entertainment.