Photo Special16 Photos You Need to See from the iHeartRadio Festival
What happened in Vegas this weekend didn't stay there! See how Taylor, Ariana, Alicia, Usher and more celebrated in Sin City
Credit: Kevin Mazur/WireImage
Updated: Monday Sep 22, 2014 | 12:30 PM EDT By: Jocelyn Vena
More from PEOPLE
- See 3 Generations of Royals Hop the Canadian Rails!
- Read the Cover Story: Brad & Angelina Split After 12 Years: It's Over
- Woman on Rush Hour N.J. Train That Crashed into Station, Killing 1 and Injuring Dozens: 'It Was Out of a Movie'
- See the New Matthew Williamson for CB2 Collection — Before It Comes Out
- WATCH: Rob Kardashian Jokes That His Childhood Crush Was ... His Sister Kim?