September 26th, 2011 | 4:45 pm The iHeartRadio Festival Boasted The Greatest Lineup Of All Time, End Of Story by Jordan Runtagh « Return to post kelly_clarkson_1.jpg ◄ Back Next ► Picture 5 of 30 Kelly Clarkson performs at the iHeartRadio Music Festival held at the MGM Grand Garden Arena on September 23, 2011 in Las Vegas, Nevada [Photo: Getty Images] « Return to post
