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!
Katy Perry performed her latest hit, "Dark Horse" with Juicy J. at the 56th Annual Grammys Awards Sunday night, where she put the audience under her spell while delivering a a witchy, high-kicking performance complete with broom poledancing!
Check out some of the pics from Katy's Grammy performance below.
Watch the performance:
Photos: Getty Images