Mark Lee is a South Korean-Canadian musician born in Toronto, Canada, on August 2, 1999. He is a former member of SM Rookies, a pre-debut training group assembled by talent agency SM Entertainment, and later became a member of boy band NCT, as well as the subunits NCT U, NCT 127, and NCT Dream, making his debut in 2016. In 2019, he joined the pop supergroup SuperM. He has also appeared in a number of variety TV shows, including “High School Rapper” (2017) and “SuperM: The Beginning” (2019).