Paul McCartney and Dave Grohl perform onstage at the 54th Annual GRAMMY Awards held at Staples Center on February 12 2012 in Los Angeles California
{"Image ImageDescription": "LOS ANGELES, CA - FEBRUARY 12:  (L-R) Paul McCartney and Dave Grohl perform onstage at the 54th Annual GRAMMY Awards held at Staples Center on February 12, 2012 in Los Angeles, California.  (Photo by Kevin Winter/Getty Images)", "Image Copyright": "2012 Getty Images"}