The iHeartRadio Music Festival is coming back to Las Vegas this September!

Mark your calendars: for the third straight year, the star-studded, multi-genre iHeartRadio Music Festival will take place over two days at the MGM Grand Garden Arena in Las Vegas. It all goes down September 20 and 21, 2013.

In a press release today,  Clear Channel also announced its continued partnership with Macy's, to bring back Macy's iHeartRadio Rising Star, a campaign designed to spotlight America's emerging musicians and find one lucky artist or group to perform at the iconic iHeartRadio Music Festival.

Clear Channel's industry experts and Macy's have selected 25 up-and-coming musicians to present to fans across America, who will then vote for an emerging artist who will be given a chance to perform alongside music's biggest stars at the iHeartRadio Music Festival 2013 and at Macy's Glamorama events this summer. Clear Channel listeners, iHeartRadio fans and Macy’s shoppers will select their favorite emerging talent and vote online at or at The artist with the most votes will perform at the iHeartRadio Music Festival. Voting begins April 1 and will run through May 12.

Last year's winners of the Macy’s iHeartRadio Rising Star, Megan & Liz, received nearly 3 million votes from Clear Channel radio listeners, iHeartRadio fans and Macy’s shoppers across the country – including some of music’s biggest names such as, Pitbull, David Guetta, Enrique Iglesias and Randy Jackson. 

The winning duo performed alongside music’s biggest stars at the 2012 Festival which included No Doubt, Bon Jovi, Jason Aldean, Lil Wayne, Swedish House Mafia, Usher, Green Day, Rihanna, P!nk, Brad Paisley, Calvin Harris, Enrique Iglesias, Mary J. Blige, Taylor Swift, Linkin Park, deadmau5, Aerosmith and Pitbull. More than 17 million people tuned into the 2012 iHeartRadio Music Festival, which also received more than 1 billion social impressions and more than 50 million text-to-win contest entries.

The 2013 iHeartRadio Music Festival lineup will be announced this summer.  Further details including ticket information, show line-up and exclusive "Road to Vegas" content will also be available this summer.