Kim Jeong Hoon

김정훈,金楨勳

Kim Jeong Hoon(born January 20, 1980), 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 debuting with the singleVoice Mailin 2000. After the duo disbanded in 2005, his fame increased as an actor starring in Goong , a drama based on comic book of the same name.