Doh Kyung-soo, better known by his stage name D.O, was born in South Korea in 1993. He is one of the main vocalists of the South Korean-Chinese boy group Exo. D.O. has also starred in various television dramas and movies. He became a trainee after participating in an audition for SM Entertainment in 2010. After two years with the Label, D.O. debuted with the boy group EXO in 2012.