PSY made a surprise appearance for a Google April Fools Day prank, representing Gangnam, Seoul.

Google created a 'treasure hunt' map as one of its pranks to celebrate April Fools Day. Psy was chosen to represent the district of Gangnam as a treasure. If you click on a google map, a treasure map appears on the right side of the screen. If you click the tab, Psy in his 'Gangnam Style' getup appears on the treasure map. 

National icons located in other areas of Seoul such as The National Assembly Building in Yeouido, The Statue of Admiral Yi Sunsin in Jongno, Namsan Tower in Yongsan, and the Stone Statue of Oldman in Jeju also appear on the treasure map. 

In other prank-free news, Psy will be holding his concert 'Happening' on April 13^th in Seoul at the Seoul World Cup Stadium, where he will unveil a new single, the first since he came out with 'Gangnam Style' nine months ago. He has invested about 3 billion won (approximately 2 million US) into the production costs for this performance.