Kim Jae-joong, simply known as Jaejoong, is a South Korean singer, songwriter, actor, and director. 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 also went by the stage names, Hero Jaejoong and Jejung. Kim has branched out to act in dramas including Sunao ni Narenakute, Protect the Boss, and most recently Dr. Jin, 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. In January 2013 he released his first EP, titled I, followed by a full length album, WWW in October the same year.