NCT DREAM is a South Korean boy group, the third sub-unit of NCT, formed by SM Entertainment in 2016. The group consists of seven members: Mark, Renjun, Jeno, Haechan, Jaemin, Chenle, and Jisung. They debuted on August 25, 2016, with the single “Chewing Gum” at an average age of 15.6, initially as NCT’s teenaged unit with a graduation system where members would leave after turning 20 (19 internationally). In 2020, the group rebranded as a fixed seven-member unit, with Mark returning after graduating in 2018.