Kim Sang-woo (๊น์์ฐ, born July 3, 1993 in Seoul, South Korea), better known by his stage name Roy Kim (๋ก์ดํด), is a South Korean singer-songwriter and radio presenter. He was the winner of Mnet's talent competition series Superstar K4. After the final, Roy Kim has announced that he will be donating his prize money ($460,596) to charity. He already made his debut at โ2012 MAMAโ with a special stage, and his other prize is a support for the release of his new album, as well as a brand new car. Read more on Last.fm