Global Citizen Festival
Musician Dave Grohl and the Foo Fighters perform at the Global Citizen Festival in Central Park on Saturday Sept. 29, 2012 in New York. (Photo by Evan Agostini/Invision/AP)
Musician Dave Grohl and the Foo Fighters perform at the Global Citizen Festival in Central Park on Saturday Sept. 29, 2012 in New York. (Photo by Evan Agostini/Invision/AP)
