Kim Jae-joong, also known mononymously as Jaejoong, is a South Koreansinger, songwriter, actor, director and designer. He is best known as a member of the Korean pop group JYJ, and was one of the original members of boy band TVXQ. Kim was also known by the stage names Hero Jaejoong (in South Korea) and Jejung (in Japan). Kim is now using Kim Jae-joong (JYJ) for his activities.
Kim has branched out to act in TV dramas including Sunao ni Narenakute, Protect the Boss, Dr. Jin, Triangle, SPY and most recently Manhole; and in films such as Heaven's Postman and Jackal is Coming. He was also the Executive Director for JYJ's 2011 Worldwide Tour and the 2011 LG Whisen Rhythmic All Stars. -source-