Which singer is also a guitarist, Kang Seung-yoon or Piotr Wiwczarek?
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.
Yoon Chae-kyung Yoon Chae-kyung (born July 7, 1996), is a South Korean singer and actress. She originally debuted in 2012 as a member of Japan-based South Korean girl-group Puretty under DSP Media. She is also known as a contestant of "Kara Project" (2014) and "Produce 101" (2016).