The iHeartRadio Music Awards is back for its second year, this year. Today in Los Angeles, the event is being held at The Shrine Auditorium. The star-studded event is expected to feature performances from the likes of Sam Smith, Rihanna, Iggy Azalea, Madonna, and many more. While Pitbull hosted last year’s, Jamie Foxx will be hosting the show this year. As far as nominations go, Iggy Azalea and Sam Smith lead with five nominations each, while Ariana Grande and Taylor Swift both received four nominations.