Kim Ki-bum (born September 23, 1991), better known by his stage name Key, is a South Korean singer and actor. Debuted as a member of the group Shinee in May 2008, and began his acting career in 2011 in the Mnet's series Moon Night '90, playing Lee Hyun Do. In 2014 along with Nam Woo-hyun formed the duo Toheart.