D.O. (Korean: 디오) was born Do Kyung Soo (Korean: 도경수; Hanja: 都暻秀) on January 12, 1993 in Goyang, Gyeonggi Province, South Korea. He's the main vocalist of EXO-K. After winning in a singing competition, he was cast into S.M. Entertainment through the S.M. Casting System in 2010. D.O. was formally introduced as a member on January 30, 2012. Read more on Last.fm