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Adele, Chris Brown

LOS ANGELES, CA - FEBRUARY 10: Musician Adele (L) and singer Chris Brown attend the 55th Annual GRAMMY Awards at STAPLES Center on February 10, 2013 in Los Angeles, California. (Photo by Larry Busacca/WireImage)

Famous Friends Mingle at the Grammys

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