0Djokovic Goes Gangnam'Gangnam Style' can't be stopped. Novak Djokovic, world No. 2 ranked tennis player, is the most recent celebrity to be caught dancing to Psy's smash hit. We knew he had game, but how are his moves?Updated Apr. 21, 2017 3:37PM EDT / Published Sep. 29, 2012 11:06AM EDT