Kim Min-seok (Korean: 김민석; born March 26, 1990), better known by his stage name Xiumin, is a South Korean singer and actor. He is best known as a member of the South Korean-Chinese boy band Exo, its sub-group Exo-M and its sub-unit Exo-CBX.

In 2008, Xiumin won second place in the SM Everysing Contest. He later became a trainee through SM Entertainment's Casting System in the same year.

Xiumin was revealed as the seventh member of South Korean-Chinese boy group Exo in January 2012. The group debuted on April 8, 2012. In 2013, Xiumin made a guest appearance alongside actress Kim Yoo-jung in the music video for the song "Gone" by South Korean singer Jin, now a member of Lovelyz.

In January 2015, Xiumin made his musical theatre debut, playing the character of Aquila in the SM Entertainment musical School OZ alongside labelmates Changmin, Key, Luna, Suho and Seulgi. In October 2015, Xiumin played the leading role opposite actress Kim So-eun in the web drama Falling for Challenge....