(Korean: 슈퍼주니어)

Super Junior (Korean: 슈퍼주니어), also known as simply SJ or SuJu, is a thirteen member Kpop boy band formed by SM Entertainment in 2005. The group initially debuted with twelve members on November 6, 2005 with the single, "TWINS (Knock Out)". The original twelve members, from oldest to youngest, are Leeteuk (the leader), Heechul, Han Geng, Yesung, Kang-In, Shindong, Sungmin, Eunhyuk, Donghae, Siwon, Ryeowook, and Kibum. On May 23, 2006 SM Entertainment announced the addition of a new member, Kyuhyun, making them the thirteen member group they are today.

Many of the members had already pursued an entertainment career before Super Junior's debut through acting, DJ-ing, and modeling. Most members have been actors, MCs, models, or DJs prior to debut. Heechul, Siwon, and Kibum made their debuts in dramas and films. Leeteuk, Yesung, Kang-In, Shindong, Sungmin, and Eunhyuk made cameo television appearances and became active DJs or MCs after debut. Hangeng made his first media appearance as a model.