Kim Hyung-Soo (Hangul: 김형수; born December 30, 1981), better known by his stage name K.Will (Hangul: 케이윌) is a South Korean balladsinger, vocal coach, dancer, songwriter, composer, and actor. K.Will first became known in South Korea through his single “Dream” in “A Love to Kill” OST, released in 2006. A year after his single and 5 years after as a trainee and a vocal coach, he released his first album “Left Heart” in 2007. Then, after two years, he came back with a successful single, "Love 119," in December 2008. This was followed by a mini album “Dropping the Tears” in April 2009 and his second album “Miss, Miss and Miss” in November 2009.
K.Will has a great deal of collaborations and drama soundtracks to his name, and has proven his ability to rap and dance.