Park Jae-sang (, pɐk̚.t͡ɕεsɐŋ; born December 31, 1977), known professionally as Psy (stylized in all caps) (; saɪ ; 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. On December 21, 2012, his music video for "Gangnam Style" exceeded one billion views on YouTube, becoming the first video to do so in the website's history. Psy was subsequently recognized by the media as the King of YouTube. As of June 2023, it is the eleventh most viewed video on YouTube, with over 4.7 billion views. In December 2012, MTV noted Psy's rise from being little known outside South Korea, to being hailed as the "Viral Star of 2012". On December 31, 2012, Psy performed in a globally televised New Year's Eve celebration with American rapper MC Hammer on-stage in front of a live audience of over a million people in Times Square, New York City. Psy performed under YG Entertainment from 2010 until 2018 to found his own company, P Nation, the next year. Park Jae-sang was born on December 31, 1977, to an affluent family in the Gangnam District of Seoul, South Korea. He was born into the Miryang Park clan. His father, Park Won-Ho, is the executive chairman of DI Corporation, a manufacturer of semiconductor manufacturing equipment listed on the Korea Exchange. His mother, Kim Young-hee, owns several restaurants in Gangnam. Park attended Banpo (반포) Elementary and Middle Schools and Sehwa (세화) High School. He disliked school and was known as the class clown. In an interview on South Korea's Seoul Broadcasting System, a former teacher of Park said: "I remember Psy making a lot of sexual jokes during class. He had such a big influence that he would drive the entire class to his jokes. I disliked him at the time, but looking back, I see that he added a great energy to the class.