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Shakin' things up. Shakira spices up her performance on Oct. 9 in New York

Lenny Kravitz And Craig Ross | GRAMMY.com

Duck face. Jon Bon Jovi gives his best bird impression during a performance on Oct. 9 in Anaheim, Calif.��

Jussie Smollett, "Empire"

Theory of a deadman

*Electric Blue

Slash joins honoree Ozzy Osbourne for a killer performance of the Black Sabbath classic "Paranoid" at the 10th annual MusiCares MAP Fund benefit concert on May 12 in Los Angeles

Soon-to-be mama Christina Aguilera rocks her baby bump during a pre-Mother's Day performance at KIIS-FM's Wango Tango 2014 on May 10 in Los Angeles

Eminem | GRAMMY.com