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Carrie Underwood, Miranda Lambert, Dave GRohl, Blake Shelton

LOS ANGELES, CA - FEBRUARY 10: (L-R) Singers Carrie Underwood, Miranda Lambert, Dave Grohl, and Blake Shelton attends the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Rick Diamond/WireImage)

Famous Friends Mingle at the Grammys

A host of celebrity pals party together at the 2013 Grammys.