LAS VEGAS (AP) - Some of the biggest names in music are descending on Las Vegas for the iHeartRadio Music Festival 2012 that kicks off Friday.
Artists like Taylor Swift, Aerosmith, Rihanna and Bon Jovi will take the stage at the two-day concert at the MGM Grand.
The concert, which promotes Clear Channel's iHeartRadio digital music service, is in its second year.
Other artists on the lineup are Usher, Lil Wayne, Green Day, Miranda Lambert, Mary J. Blige, Brad Paisley, Pitbull, Enrique Iglesias, No Doubt, Linkin Park, Jason Aldean and P!nk.
Ryan Seacrest will introduce the first night's show.
Seacrest told The Associated Press in July that this year's show will be "bigger and better" than last year.
The concert will play live on iHeartRadio.com and Clear Channel stations nationwide.