Madonna Gangnam Style: Psy Joins Queen Of Pop On Stage [VIDEO]

Madonna's world "MDNA" tour made another pit stop in New York City on Tuesday in Madison Square Garden, and this time the Queen of Pop wasn't alone. Madonna teased that she would treat the audience to a special surprise guest during the show, and after much anticipation, she revealed it to be none other than Psy, the artist behind the breakout viral hit "Gangnam Style."

'Gangnam Style' star joins Madonna onstage in NYC Madonna has gone "Gangnam Style." Korean pop star PSY joined the pop icon Tuesday night during her second show this week at Madison Square Garden. They danced to his pop culture anthem "Gangnam Style" and to her jam "Music" in front of nearly 20,000. Madonna said PSY flew "all the way from Frankfurt, Germany this morning." She also said she was a big fan of the rapper and loved his suit, which was bright red. He added that he's had a lot of experiences in the last few months, and that performing at MSG with Madonna topped his list. Madonna also collected money for those affected by Superstorm Sandy. Fans threw money onstage while she sang "Like a Virgin." She said she collected $3,000 at Monday's show.