Photos: Getty Images

By Kathleen Perricone

It’s that time of year again … the iHeartRadio Music Festival!

On September 19 and 20 at the MGM Grand in Las Vegas, the biggest names in music will all converge on one stage for an epic two-night event, which will be hosted by Ryan Seacrest.

For the fourth annual iHeartRadio Music Festival, here is the official lineup:

Taylor Swift
Ariana Grande
Nicki Minaj
Motley Crue
Zac Brown Band
One Direction
Ed Sheeran
Iggy Azalea
Eric Church
Calvin Harris
Steve Aoki

And just like last year, there will be an iHeartRadio Music Festival Village that Saturday afternoon on the Sin City strip … so stay tuned for that lineup!

How to get tickets to the big show: An exclusive Mastercard pre-sale (only for cardholders) begins today at 4 p.m. ET through Friday at 4 p.m. ET at

For non-Mastercard cardholders, all tickets will go on sale this Saturday, July 26, at 1 p.m. ET through and the MGM Grand Box Office.