Gangnam Style (강남 스타일) is a 2012 dance pop single written and performed by Korean pop singer Park Jae Sung, better known by his stage name PSY. Since its release in mid-July 2012, the highly entertaining music video has spawned hundreds of parodies and copycat dance videos on YouTube and surpassed Justin Bieber's single "Baby" as the most watched video on YouTube with over one billion vi`ews as of December 21st, 2012.