Posted by | Ray Cornelius

Clear Channel is gearing up for another ‘sold out’ event with this year’s 2012 iHeartRadio Music Festival!

The media conglomerate announced its stellar lineup yesterday for what many consider as one of the “Biggest Live Music Events in Radio History.”  This year’s list of performers includes Mary J. Blige, Rihanna and Usher.  The two-day festival will take place at MGM Grand in Las Vegas September 21-22.

Speaking of Festivals…check out this recent performance of Rihanna at London’s Barclaycard Wireless Festival. She makes a splashy entrance in spite of just having buried her sweet Gran Gran Dolly.

Yeah, that Rihanna just won’t let up!

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Click here to see the full list of musical acts for this year’s iHeartRadio Music Fest!