'Gangnam Style' star joins Madonna onstage
Madonna and PSY
Credit: Liz Rosenberg Media / CNN
Madonna welcomed Korean rap star PSY to her show this week at Madison Square Garden in New York.
Other Entertainment News
Rodriguez, Linklater on Austin film industry
Austin Marine dedicates lounge to fallen friend
Tallest SkyScreamer in the world
Who are the 'Dancing With the Stars' champions?
At last: 'Arrested' is reborn Monday on Netflix
