Bruno Mars accepts the award for best pop vocal album for "Unorthodox Jukebox" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Gallery: Grammy Awards performances
Jan. 27, 2014 @ 02:08 PM
From Katy Perry to Madonna and Stevie Wonder to Pharrell Williams, music stars of every generation turned out from Sunday night's Grammy Awards.