In what year did the boy group led by Kang Seung-yoon debut?
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.
5urprise 5urprise (), pronounced Surprise, is a "first ever South Korean actor group". Formed in 2013, it consists of Seo Kang-joon, Gong Myung, Yoo Il, Kang Tae-oh and Lee Tae-hwan.