Park Yoo-chun (; born June 4, 1986),
simply known as Yoochun, is a South Korean singer, songwriter, actor, dancer, and model. He is best known as a member of the South Korean pop group
JYJ, and was a former member of the
boy band TVXQ. Park Yoo-chun is also known by the stage names
Micky Yoochun (in South Korea),
Yuchun (in Japan), and
有天 (in China). However, after he left his previous band, TVXQ, he is now using
Park Yoochun (JYJ) instead of
Micky Yoochun (TVXQ).