From Bruno Mars to Katy Perry, see which stars rocked out for the camera at the Sin City extravaganza
Credit: Harper Smith for iHeart Radio
Updated: Monday Sep 23, 2013 | 05:20 PM EDT
By: Kiran Hefa and Alison Schwartz
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No surprise here: Even among top-notch talent, Diddy commands the spotlight at the Las Vegas festival.
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