In what year was the South Korean boy group whose leader is Kang Seung-yoon formed?
Kang Seung-yoon Kang Seung-yoon (born (1994--) 21, 1994 ), known as Seungyoon, is a South Korean singer-songwriter, record producer, actor, and leader of boy group Winner. In 2010, he participated in the reality television singing contest "Superstar K2" and finished in fourth place. In January 2011, he became a trainee under YG Entertainment and went on to debut as a solo artist in July 2013 and as the leader of Winner in October 2013.
1TYM 1TYM (Korean: 원타임, pronounced as "One Time") was a four-member South Korean hip hop group. They are Oh Jinhwan, Park Hong-jun (also known as Teddy Park), Song Baekyoung, and Im Taebin (also known as Danny).