Park Jae-sang (Korean: 박재상; Hanja: 朴載相, IPA: [pɐk̚.t͡ɕεsɐŋ]; born December 31, 1977), known professionally as Psy (stylized in all caps) (싸이; /saɪ/ SY; Korean: [s͈ai]), is a South Korean singer, rapper, songwriter, and record producer. Psy is known domestically for his humorous videos and stage performances, and internationally for his hit single "Gangnam Style". The song's refrain was entered into The Yale Book of Quotations as one of the most famous quotations of 2012.[2] Read more on Last.fm