Lang Lang, James Hetfield

Lang Lang, left, and James Hetfield of Metallica, perform "One" at the 56th annual Grammy Awards at Staples Center on Sunday, Jan. 26, 2014, in Los Angeles. (Photo by Matt Sayles/Invision/AP)
Macklemore, Mary Lambert, Madonna, Ryan Lewis, Queen Latifah
Miranda Lambert, Billie Joe Armstrong

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