JUST ADDED: 5 Seconds of Summer will be rocking the stage at this year's iHeartRadio Music Festival Village in Las Vegas! The band sat down with Ryan Seacrest to break the news. Click here to buy your tickets now, before they sell out!
Backstage at the iHeartRadio Music Festival, Ke$ha talks about her pre-show glitter ritual (it requires a bathtub and a guy named Boot) and reveals a surprise in store for her set (with someone that rhymes with 'Bone Wet).
Check out the interview: