김정훈

Kim Jeong Hoon (born January 20, 1980 in Jinju, South Korea), also known in Japan as "John-Hoon", is a South Korean singer and actor. He initially rose to fame as a member of Korean duo UN (an acronym for "United N-generation"), debuting with the single Voice Mail in 2000. After the duo disbanded in September 2005, Hoon announced that he was going to pursue an acting career instead. His fame increased as an actor starring in Goong, a drama based on comic book of the same name.