Recording artist Katy Perry poses on the red carpet
at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Recording artist Carrie Underwood poses on the red carpet as she arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Recording artist Miley Cyrus poses on the red carpet as she arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Amber Rose and Wiz Khalifaat pose on the red carpet as they arrive at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Recording artist Alicia Keys poses on the red carpet as she arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Chrissy Teigen and singer John Legend pose on the red carpet as they arrive at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Singer Taylor Swift (L) arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada, May 20, 2012. (REUTERS)
Ann Hudson and granddaughter, singer Katy Perry, arrive at the 2012 Billboard Music Awards in Las Vegas, Nevada, May 20, 2012. (REUTERS)
Singer Monica arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada, May 20, 2012. (REUTERS)
Actress Zooey Deschanel poses on the red carpet as she arrives at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Rapper Wiz Khalifa holds his best new artist award backstage at the 2012 Billboard Music Awards in Las Vegas, Nevada, May 20, 2012. (REUTERS)
Singer Taylor Swift holds her Billboard woman of the year award backstage at the 2012 Billboard Music Awards in Las Vegas, Nevada, May 20, 2012. (REUTERS)
Singer Natasha Bedingfield poses backstage at the 2012 Billboard Music Awards in Las Vegas, Nevada May 20, 2012. (REUTERS)
Redfoo (L) and SkyBlu of LMFAO pose with their awards backstage during the Billboard Music Awards at MGM Grand Garden Arena in Las Vegas, May 20, 2012. LMFAO won the Hot 100 Song of the Year and Top Duo Group. (REUTERS)
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