Kim Junsu (born December 15, 1986; registered on January 1, 1987 in Gyeonggi-do, South Korea) better known by his stage names, Xiah, Xiah Junsu (shi-ah jun-sun) (in South Korea) and Junsu (in Japan). He is a Korean singer-songwriter, composer and occasional actor. He is a member of South Korean boy band TVXQ.