Super Junior , also known as SJ or SuJu, is a South Korean boy band composed of Leeteuk, Heechul, Yesung, Shindong, Sungmin, Eunhyuk, Siwon, Donghae, Ryeowook, and Kyuhyun. Han Geng, Kibum, and Kangin were originally part of the group before departing in 2011, 2015 and 2019, respectively. The group was formed by the founder of SM Entertainment, Lee Soo-man in 2005 as a 12-piece group with rotational members but the concept was abandoned after addition of Kyuhyun in 2006. They are also dubbed by the media as the "King of Hallyu Wave" due to their contributions in Korean Wave.

A boy band is loosely defined as a vocal group consisting of young male singers, usually in their teenage years or in their twenties at the time of formation. Generally, boy bands perform love songs marketed towards girls and young women. Many boy bands dance as well as sing, usually giving highly choreographed performances. South Korean boy bands usually also have designated rappers.