Check out more of their pics below:
Adam Lambert
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Adam Levine
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Bon Jovi
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Bruno Mars
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Chris Martin
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Daughtry
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Eminem
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Enrique
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Gavin Degraw
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Jason Mraz
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John Mayer
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Justin Timberlake
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Kris Allen
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Pitbull
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Travie
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Usher
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