Britney Spears Hair Pictures: KIIS FM Wango Tango Concert 2011 Photos, Pics

Britney Spears Pictures: Britney Spears attends 102.7 KIIS FM's Wango Tango concert at the Staples Center on May 14, 2011 in Los Angeles, California.

102.7 KIIS-FM, a premiere mainstream radio station based in Los Angeles, has been hosting this renowned concert annually since 1998. This year's event boasted the likes of Ke$ha, Pitbull with Jennifer Lopez, Selena Gomez, Lupe Fiasco, T-Pain, Jason Derulo, Far East Movement, Matthew Morrison, New Boyz, Cobra Starship and Cody Simpson. The event also featured a guest appearance by Britney Spears.

Photo credit: Koi Sojer / PR Photos