Download JO1 - やんちゃ BOY やんちゃ GIRL (장난꾸러기 BOY 장난꾸러기 GIRL) (JO1 Ver.) MP3 from album "The STAR". All MP3/songs are for personal, non-commercial use only. Please support JO1 by buying their original song, Available on iTunes, Spotify, JOOX, Amazon, or other Official Music Store. Best regard.