Woo Chang Bum was the rapper and dancer of the boy group 100% debuted on September 18, 2012 under TOP Media. His departure was announced on September 12, 2016,
He was the leader, rapper, dancer and maknae of the boy group Vermuda under Pacemaker Entertainment. The group debuted on June 13, 2017 with their first single album "Triangle" and presumably disbanded in 2019 due to inactivity and the deletion of their Instagram.
