About KANG SEUNG YOON
Kang Seung-Yoon ( born January 21, 1994), known mononymously as Seungyoon or Yoon, is a South Korean singer-songwriter, actor, and leader of the boy group Winner (위너). Appearing on the reality television singing contest Superstar K2 (2010), he rose to prominence after finishing in fourth place. Through the show he released the digital single "Instinctively", which became a number one hit, almost selling over 2 million copies. In January 2011,