Kim Yu-kwon (Hangul: 김유권), better known by his stage name U-Kwon, is a South Korean singer, dancer, and actor. He is best known as the lead dancer and vocalist of the boy group Block B and its sub-units Bastarz and T2U. Born in Suwon, South Korea, he made his debut in the entertainment industry in April 2011 with Block B's single "Do You Wanna B?".