Lead rapper for the all-male K-pop group B.I.G that debuted in 2014 with a single called "Hello."
He participated in the survival reality show The Unit. He ranked number 2 for the rap battle for one episode of the show.
He has both a younger brother and younger sister. His birth name is Yoo Hee-do.
He and fellow B.I.G member J-Hoon each earned a role in a web drama called Idol Protect the World.