Viewed Wikipedia 10 February 2015 : (Kim Sang-woo (Hangul: 김상우, Hanja: 金相佑; born July 3, 1993), better known by his stage name Roy Kim (Hangul: 로이 킴), is a South Korean singer-songwriter and radio presenter. He was the winner of Mnet's talent competition series Superstar K4) http://en.wikipedia.org/wiki/Roy_Kim