Albums That Sold 1 Million in One Week
Taylor Swift
'Speak Now' (2010)
1,047,000 albums sold week of 11/13/10


*Sales data courtesy of Nielsen Soundscan

Some of the biggest names in music are lined up for this fall's iHeartRadio Music Festival, which spans genres from pop and rock to EDM, country, and even ska (welcome back to the stage, No Doubt).

Taylor Swift, Rihanna, Usher, Green Day, Swedish House Mafia, Aerosmith and Bon Jovi are among the headliners announced today for the Sept. 21-22 festival, hosted at the Las Vegas MGM Grand.

In a video on the station's website, host Ryan Seacrest also revealed that Brad Paisley, Pitbull, Linkin Park, Lil Wayne, Pink, Miranda Lambert, Mary J. Blige, Shakira, Deadmau5, Enrique Iglesias, Calvin Harris and Jason Aldean would perform, with additional stars to be announced throughout the summer.

Tickets for iHeartRadio Fest go on sale July 14, and the show will be broadcast live on iHeartRadio, Yahoo! and Xbox.

Last year's inaugural music festival, hosted by the Clear Channel station, featured performances by Lady Gaga, Coldplay, Nicki Minaj, Jennifer Lopez, Kenny Chesney, Bruno Mars and more. The event, intended to celebrate the launch of the new iHeartRadio, sold out 10 minutes after tickets were put on sale to the general public.