Park Jae-sang (born December 31, 1977), hangul: 박재상, hanja: 朴載相, better known by his stage name Psy (Korean: 싸이), stylized PSY, is a South Korean singer, songwriter, record producer and rapper. Psy is known domestically for his humorous videos and stage performances, and internationally for his hit single "Gangnam Style". More: en.wikipedia.org.