Madonna put on quite a show last night in NYC. From nudity, to special guests, to Superstorm Sandy relief.

Madonna took to the stage at Madison Square Garden in front of 20,000 fans. Fresh of a flight from Germany Korean pop star Psy, joined Madge on stage for a performance of his hit 'Gangnam Style.' Psy said that preforming with Madonna was 'top of his list of great life experiences.'

Madge then kept it classy mooning the crowd to get their 'undivided' attention to talk about Superstorm Sandy relief efforts. As she sang 'Like a Virgin' the crowd threw cash donations on stage.

More From WWMJ Ellsworth Maine