Super Junior-M, often referred to as SJ-M, is a Mandopop boy band. Formed in 2008 in Seoul, South Korea, the band is the first international music group in the Chinesemusic industry to have members of both Chinese and Korean descent, and is the first group produced by Korea's CT (Culture Technology) organization, created through a comprehensive localization strategy.
Super Junior-M is the third and most successful subgroup branched off from the Korean boy band Super Junior. The group originally consisted of leader Han Geng, Siwon, Donghae, Kyuhyun, Ryeowook, and two non-Super Junior members, Henry and Zhou Mi. In December 2009, Han filed a lawsuit against their agency SM Entertainment and parted with the group, resulting in the group's temporary disbandment. Han was later replaced by Super Junior members Eunhyuk and Sungmin, coinciding with the release of the group's second EPPerfection in February 2011.