One piece of the ten member Korean boy band Topp Dogg. The group made their debut in 2013 and has since released over half a dozen albums and several singles.
He was the fifth member of Topp Dogg to be announced.
He competed in the program MYDOL to become a member of the group Vixx but was disqualified in the final round.
His real name is Shin Yooncheol.