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
More from PEOPLE
See More News
2 of 25
No surprise here: Even among top-notch talent, Diddy commands the spotlight at the Las Vegas festival.
Copyright © 2014 Time Inc. All rights reserved. Reproduction in whole or in part without permission is prohibited.