Photos: Music's biggest stars win big at Grammys
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Credit: Getty Images
LOS ANGELES, CA - FEBRUARY 10: (L-R) Musicians Marcus Mumford and Winston Marshall of Mumford & Sons perform onstage at the 55th Annual GRAMMY Awards at Staples Center on February 10, 2013 in Los Angeles, California. (Photo by Kevork Djansezian/Getty Images)
