2012 Billboard Music Awards

LAS VEGAS, NV - MAY 20: Michael Lockwood (L) and Lisa Marie Presley 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)

LAS VEGAS, NV - MAY 20: Musician Redfoo of 'LMFAO' performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Katy Perry (R) and her grandmother 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)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Hosts Ty Burrell and Julie Bowen speak onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Miley Cyrus presents the award for Top New Artist onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Rapper Wiz Khalifa accepts the award for Top New Artist onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Kelly Clarkson performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Katy Perry accepts the Billboard Spotlight award onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Presenter Natasha Bedingfield speaks onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: The Wanted perform onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Taylor Swift accepts the Woman of the Year award onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Usher performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Carly Rae Jepsen performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singer Katy Perry performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Carrie Underwood performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Justin Bieber performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singer Nelly Furtado performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singer John Legend performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singer Jordin Sparks performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Pat Houston (L) and Bobbi Kristina Houston-Brown accept the Millennium Award on behalf of Whitney Houston onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: Singer Chris Brown performs onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Dancer Jean Sok performs onstage DURING CeeLo Green's performance with Goodie Mob at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singers Alicia Keys (L) and Stevie Wonder perform onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Christopher Polk/Billboards2012/Getty Images for ABC)

LAS VEGAS, NV - MAY 20: ***EXCLUSIVE COVERAGE*** Singers Alicia Keys (L) and Stevie Wonder perform onstage at the 2012 Billboard Music Awards held at the MGM Grand Garden Arena on May 20, 2012 in Las Vegas, Nevada. (Photo by Ethan Miller/Billboards2012/Getty Images for ABC)