Justin Bieber (Christopher Polk/Getty Images)It just wouldn't be the holidays without Justin Bieber rocking out on stage, right? The "Boyfriend" singer, as well as Ke$ha, The Wanted, and some of pop music's other top acts took the stage in Los Angeles on Monday for KIIS FM's Jingle Ball 2012 at Nokia Theatre L.A. Live. For the first time, the radio station planned a two-night event, with Bieber and company headlining the second night. Eighteen-year-old Bieber, with every hair perfectly in place as usual, began his set at about 10:15 p.m., and at one point asked how many ladies in the audience were single, E! reported. Despite that tease, the radio station behind the concert tweeted that Bieber still appeared somewhat taken. "Backstage scoop! @justinbieber is here with @selenagomez and they're looking VERY friendly! @1027KIISFM #JingleBall #awwww," the radio station's official Twitter account read.
Ke$ha (JB Lacroix/WireImage)
Ke$ha and The Wanted (no drama with them and Lindsay Lohan to report today!) were also part of the star-studded line-up, along with fun., Flo Rida, Afrojack, Owl City, Psy, and Jedd. Ke$ha, who donned a brocade bodysuit for her performance, was celebrating the release of her new album Warrior, which came out Tuesday. The "Tik Tok" singer has noted that her latest effort is more rock 'n' roll — a little tougher — than her previous effort.
The Wanted (Christopher Polk/Getty Images)
Kendall and Kylie Jenner (Jason LaVeris/FilmMagic)
"Warrior was actually inspired by talking to my fans and hearing their stories. I have a lot of gay and lesbian and transgender fans and I heard a lot of stories on Twitter and around the world about how they have to struggle with bullying and things like that," Ke$ha told The Hollywood Reporter in an interview published Monday. "There's a gay suicide epidemic. So that was inspired by hearing my fans stories and wanting to give them back the strength to be a warrior. It's a strong word. That's the energy of the record: strong, fearless, power. I wanted to hopefully inspired my fans with it."
Of course, Kardashian little sisters Kylie and Kendall Jenner were two of the screaming fans out in the crowd. They seem to get tickets to all the big events! Kylie, 15, and Kendall, 17, flaunted their long legs in short leather skirts and high heels, just like the ensembles their "Keeping Up With the Kardashians" siblings wear.
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