Do Kyung Soo (도경수), also known as D.O. is a South Korean Singer and Actor under SM Entertainment. He is best known for being the Main Vocalist of the sensational boy group EXO. D.O. is well known for his sweet and clean vocals but he also received immense praises and public admiration when he started acting from the 2014 drama "It's Okay, That's Love" and the movie "Cart."
On July 1, 2019, D.O enlisted in the military as an active duty soldier. He was officially discharged on January 25, 2021.
He made his solo debut on July 26, 2021 with his first mini album Empathy.