Fourth Annual iHeartRadio Music Festival Concludes in Las Vegas

taylor swiftThe 2014 iHeartRadio Music Festival concluded Sunday, September 21, in Las Vegas

The two-day event, which was hosted by Ryan Seacrest, featured a lineup of nearly 40 performers at the MGM Grand Las Vegas. The festival will also air as a two-night television special on The CW on September 29 and 30, from 8:00 p.m. to 10:00 p.m.

Performers included Taylor Swift, Coldplay, Usher, Ariana Grande, Nicki Minaj, Mötley Crüe, Zac Brown Band, One Direction, Ed Sheeran, Paramore, Iggy Azalea, Train, Eric Church, Lorde, Calvin Harris, Bastille, Steve Aoki, 50 Cent, Weezer and more.

The Festival is a live representation of the diverse music catalog that fans find and enjoy through the iHeartRadio app. More than 20,000 fans attended this year's event, and it was also broadcast live via iHeartMedia's radio stations and Yahoo Live

In the past four years the Festival has helped raise $1.3 million for a number of national charities, including the American Association of Cancer Research, Alliance for Lupus Research, Muscular Dystrophy Association, Ryan Seacrest Foundation, CureDuchenne, Autism Speaks and more. Additionally, the Festival plays host to a number of critically ill children and their families through its partnership with Make-a-Wish Foundation and other similar organizations.