Paul McCartney performs at the Sandy Benefit Concert at Madison Square Garden in New York.

Alicia Keys performs at the Sandy Benefit Concert at Madison Square Garden in New York.

Mick Jagger belts a Rolling Stones hit during the 12-12-12 Concert at Madison Square Garden.

Comedian Adam Sandler took the stage, joining other celebrities like Kristen Stewart, Billy Crystal, Stephen Colbert, Jimmy Fallon and Jon Stewart at the 12-12-12 Concert in NYC's Madison Square Garden

Pete Townshend performs at the 12-12-12 Concert for Sandy Relief

Roger Waters performs at the 12-12-12 Concert for Sandy Relief at Madison Square Garden in New York.

Mick Jagger performs at the 12-12-12 Concert for Sandy Relief at Madison Square Garden in New York.

Bruce Springsteen performs at the 12-12-12 Concert for Sandy Relief at Madison Square Garden in New York.

Alicia Keys performs at the Concert for Sandy Relief at Madison Square Gerden in New York.

Eddie Vedder performs at the 12-12-12 Concert for Sandy Relief at Madison Square Garden in New York

The Who performs at the Concert for Sandy Relief at Madison Square Gerden in New York.

Bil Joel performs at the Concert for Sandy Relief at Madison Square Gerden in New York.