Billboard Music Awards 2012: Live Performances And Backstage Pictures Justin Bieber, Usher, The Wanted and Katy Perry all take to the stage to perform at this year's Billboard Music Awards in Las Vegas. 1. The Wanted hit the stage at the 2012 Billboard Awards for their performance. 2. The Wanted performed their recent hit singles 'Chasing The Sun' and 'Glad You Came'. 3. The Wanted's Max George entertains the crowd during the band's two-song set. 4. The Wanted star Jay McGuiness waves to the crowd after the band's well-received performance. 5. Max, Jay, Siva, Nathan and Tom perform for the crowd at the 2012 Billboard Awards. 6. Katy Perry performs her brand new single 'Wide Awake' live at the Billboard Music Awards. 7. The 'California Gurls' singer ascends into the air during her 'Wide Awake' performance. 8. Justin Bieber takes to the stage at the Billboard Music Awards 2012 in Las Vegas. 9. The singer gave an energetic performance of his recent hit single 'Boyfriend'. 10. Justin's 'Boyfriend' performance also saw the singer giving a show-stopping dance breakdown. 11. Usher hits the stage in Las Vegas to perform his hit single 'Scream'. 12. The 'Climax' singer dressed up in a black suit and top hat for his performance of 'Scream'. 13. Kelly Clarkson debuts new single 'Dark Side' at the Billboard Music Awards 2012. 14. The 'Stronger (What Doesn't Kill You)' singer performs in a long red dress in Las Vegas. 15. Carly Rae Jepsen gives a live performance of her hit single 'Call Me Maybe'. 16. Chris Brown heads on stage to sing his hit single 'Turn Up The Music'. 17. The 'Beautiful People' singer goes shirtless during his performance at the Billboard Music Awards. 18. Chris Brown gives a crowd-pleasing performance of 'Turn Up The Music'. 19. LMFAO performed a medley of their biggest hits to date when they took to the stage in Las Vegas. 20. The Wanted meet Stevie Wonder backstage at the Billboard Music Awards 2012. 21. Katy Perry holds up her Billboard Award at the event in Las Vegas. 22. The 'Teenage Dream' singer accepts her Billboard Spotlight Award. 23. Justin Bieber poses backstage with Wiz Khalifa and Amber Rose. 24. Justin Bieber accepts his Top Social Artist award at the Billboard 2012 Awards. 25. Justin Bieber celebrates with Usher backstage at the awards show.