Kim Hyun Joong
* Birthday: June 6, 1986
* Position: Leader, middle-low vocals
* Education: Kyungki University
* Note: Kim Hyun Joong has recently become a host of MBC's music show Show! Music Core[2], debuting on November 11, 2006, joining Brian from Fly to the Sky.
Heo Young Saeng
* Birthday: November 3, 1986
* Position: High vocals
* Note: Heo Young Saeng was a former trainee under SM Entertainment, he left to join DSP Entertainment. He is close to many TVXQ and Super Junior members, notably Hero JaeJoong and Choi Si Won.
Kim Kyu Jong
* Birthday: February 24, 1987
* Position: Middle vocals
* Note: Kim Kyu Jong, along with Park Jung Min, is currently DJ for SBS's "Youngstreet" radio.
Park Jung Min
* Birthday: April 3, 1987
* Position: Low vocals
* Past Experience: 2003 March to November - "MTV FRESH VJ"
* Note: Jung Min is the new MC of a Korean TV Show (MBC)74434. This show explores the Korean heritage and its lost treasures. He is also the DJ for "Youngstreet" along with fellow group member Kim Kyu Jong.
Kim, Hyung Jun
* Birthday: August 3, 1987
* Position: Middle-high vocals
* Past Experience: Oak Joo Hyun's (Fin. K.L) music video
* Note: Kim Hyung Jun's brother Kim Ki Bum is in the new group Xing. His brother has often been confused with Kim Ki Bum of Super Junior.
SS501- Chance MV
SS501- Warning MV
