2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Kerli arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: (L-R) Dee Hilfiger and designer Tommy Hilfiger arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: (L-R) Nathan Sykes, Jay McGuiness, Siva Kaneswaran, Tom Parker and Max George of The Wanted arrive at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Kelly Rowland arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Nelly Furtado arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: NHL hockey player Mike Fisher and Singer Carrie Underwood arrive at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Miley Cyrus arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Carrie Underwood arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Musicians Sky Blu and Redfoo of 'LMFAO' arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Actress Jurnee Smollett arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Taylor Swift arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Taylor Swift arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Katy Perry arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Usher arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Musician John Legend arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Alicia Keys arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Actress Julianne Hough arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Katy Perry arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Usher arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Gavin Degraw arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Actress Zooey Deschanel arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Singer Justin Bieber arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Actress Julianne Hough arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)

2012 Billboard Music Awards - Arrivals

LAS VEGAS, NV - MAY 20: Actress Zooey Deschanel arrives at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Frazer Harrison/Getty Images for ABC)