Super Junior, also known as SJ or SuJu, is a South Korean boy band debuted on November 6, 2005, by producer Lee Soo-man of SM Entertainment. They are also dubbed by the media and Korean Music Awards as the "King of Hallyu Wave" due to their prominent contributions in Korean Wave. The group comprised a total of thirteen members at its peak. Super Junior originally debuted with twelve members, consisting of leader Leeteuk, Heechul, Han Geng, Yesung, Kangin, Shindong, Sungmin, Eunhyuk, Donghae, Siwon, Ryeowook, and Kibum. Kyuhyun joined the group later in 2006.Super Junior launched into international recognition following the release of their best-selling single "Sorry, Sorry" in 2009, the title song of their most critically successful album, Sorry, Sorry. Over the years, they have been divided into smaller groups, simultaneously targeting different music industries and audiences. The members have also individually branched out into hosting, presenting and acting. Their successes and popularity as all-rounded entertainers have led other Korean entertainment managements to also begin training their music groups in other aspects of the entertainment industry.