The 12th Annual KIIS FM Wango Tango took place at the Verizon Wireless Amphitheater in Irvine, CA, Saturday (5/9), helping to usher in the 2009 radio station concert season.

Fans at the 16,000-seat venue were treated to a mix of musical genres. The lineup included pop acts such as the Black Eyed Peas [ tickets ], All-American Rejects [ tickets ], Lady GaGa and American Idol winner Kelly Clarkson [ tickets ], as well as hip-hop artists like Soulja Boy Tell'em, Flo Rida [ tickets ] Madcon and Pitbull [ tickets ]. Most surprisingly, Jamie Foxx [ tickets ] was thrown in for good measure.