Some of America's biggest music stars were out in force on Sunday night as the red carpet was rolled out once again for the Billboard Music Awards.
But before they took to their seats to find out who won what, it was time for a good old fash-off, as the likes of Selena Gomez, Miley Cyrus and Taylor Swift struck a pose outside the MGM Grand Hotel in Las Vegas.
Take a look at all the pics in our gallery below...
Billboard Awards 2013
2013 Billboard Music Awards - Arrivals(01 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Selena Gomez arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(02 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Selena Gomez arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(03 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Selena Gomez arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(04 of75)
LAS VEGAS, NV - MAY 19: Recording artist Kelly Rowland arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(05 of75)
LAS VEGAS, NV - MAY 19: Singer Kelly Rowland arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(06 of75)
LAS VEGAS, NV - MAY 19: Singer Kelly Rowland arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(07 of75)
LAS VEGAS, NV - MAY 19: Singer Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(08 of75)
LAS VEGAS, NV - MAY 19: Singer Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(09 of75)
LAS VEGAS, NV - MAY 19: Singer Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(10 of75)
LAS VEGAS, NV - MAY 19: Singer Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(11 of75)
LAS VEGAS, NV - MAY 19: Singer Miley Cyrus arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(12 of75)
LAS VEGAS, NV - MAY 19: Singer Ke$ha arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(13 of75)
LAS VEGAS, NV - MAY 19: Singer Ke$ha arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(14 of75)
LAS VEGAS, NV - MAY 19: Singer Ke$ha arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(15 of75)
LAS VEGAS, NV - MAY 19: Singer Ke$ha arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(16 of75)
LAS VEGAS, NV - MAY 19: Singer Ke$ha arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(17 of75)
LAS VEGAS, NV - MAY 19: Recording artist's Chad Kroeger and Avril Lavigne arrive at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(18 of75)
LAS VEGAS, NV - MAY 19: Recording artist's Chad Kroeger and Avril Lavigne arrive at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(19 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Jennifer Lopez arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(20 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Jennifer Lopez arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(21 of75)
LAS VEGAS, NV - MAY 19: Singer Jennifer Lopez and Casper Smart arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(22 of75)
LAS VEGAS, NV - MAY 19: Singer Jennifer Lopez and Casper Smart arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(23 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Jennifer Lopez arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(24 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Jennifer Lopez arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(25 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Jennifer Lopez arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(26 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Taylor Swift arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(27 of75)
LAS VEGAS, NV - MAY 19: Singer Taylor Swift arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(28 of75)
LAS VEGAS, NV - MAY 19: Actress/singer Taylor Swift arrives at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(29 of75)
LAS VEGAS, NV - MAY 19: Singer Taylor Swift arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(30 of75)
LAS VEGAS, NV - MAY 19: Taylor Swift arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(31 of75)
LAS VEGAS, NV - MAY 19: Taylor Swift arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(32 of75)
LAS VEGAS, NV - MAY 19: Singer Nicki Minaj arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(33 of75)
LAS VEGAS, NV - MAY 19: Singer Nicki Minaj arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(34 of75)
LAS VEGAS, NV - MAY 19: Singer Nicki Minaj arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(35 of75)
LAS VEGAS, NV - MAY 19: Singer Nicki Minaj arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(36 of75)
LAS VEGAS, NV - MAY 19: Safaree Samuels (L) and rapper Nicki Minaj arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(37 of75)
LAS VEGAS, NV - MAY 19: Madonna poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(38 of75)
LAS VEGAS, NV - MAY 19: Madonna poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(39 of75)
LAS VEGAS, NV - MAY 19: Madonna poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(40 of75)
LAS VEGAS, NV - MAY 19: Madonna poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(41 of75)
LAS VEGAS, NV - MAY 19: Singer Chris Brown arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(42 of75)
LAS VEGAS, NV - MAY 19: Singer Chris Brown arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(43 of75)
LAS VEGAS, NV - MAY 19: Singer Chris Brown arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(44 of75)
LAS VEGAS, NV - MAY 19: Celine Dion poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(45 of75)
LAS VEGAS, NV - MAY 19: Celine Dion poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(46 of75)
LAS VEGAS, NV - MAY 19: Celine Dion poses in the press room during the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Press Room(47 of75)
LAS VEGAS, NV - MAY 19: Recording artist Carly Rae Jepsen poses in the press room at the 2013 Billboard Music Awards at MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Gregg DeGuire/WireImage) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(48 of75)
LAS VEGAS, NV - MAY 19: Singer Carly Rae Jepsen arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(49 of75)
LAS VEGAS, NV - MAY 19: Actress Alyssa Milano (L) and David Bugliari arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(50 of75)
LAS VEGAS, NV - MAY 19: Actress Alyssa Milano (L) and David Bugliari arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(51 of75)
LAS VEGAS, NV - MAY 19: Z-LaLa arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(52 of75)
LAS VEGAS, NV - MAY 19: Z-LaLa arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(53 of75)
LAS VEGAS, NV - MAY 19: SkyBlu of LMFAO arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(54 of75)
LAS VEGAS, NV - MAY 19: SkyBlu of LMFAO arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(55 of75)
LAS VEGAS, NV - MAY 19: Actor/singer Asher Monroe arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(56 of75)
LAS VEGAS, NV - MAY 19: Actor/singer Asher Monroe arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(57 of75)
LAS VEGAS, NV - MAY 19: Caroline Hjelt (L) and Aino Jawo of Icona Pop arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(58 of75)
LAS VEGAS, NV - MAY 19: Wiz Khalifa (L) and Amber Rose arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(59 of75)
LAS VEGAS, NV - MAY 19: Wiz Khalifa (L) and Amber Rose arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(60 of75)
LAS VEGAS, NV - MAY 19: Singer Nayer arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(61 of75)
LAS VEGAS, NV - MAY 19: Singer Nayer arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(62 of75)
LAS VEGAS, NV - MAY 19: Musician Ed Sheeran arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(63 of75)
LAS VEGAS, NV - MAY 19: Television personality Audrina Patridge (L) and BMX rider Corey Bohan arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(64 of75)
LAS VEGAS, NV - MAY 19: Television personality Audrina Patridge (L) and BMX rider Corey Bohan arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(65 of75)
LAS VEGAS, NV - MAY 19: Actress Hayden Panettiere arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by David Becker/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(66 of75)
LAS VEGAS, NV - MAY 19: Actress Jenny McCarthy arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(67 of75)
LAS VEGAS, NV - MAY 19: Actress Jenny McCarthy arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(68 of75)
LAS VEGAS, NV - MAY 19: Billboard Editorial Director Bill Werde (L) and singer Miley Cyrus arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(69 of75)
LAS VEGAS, NV - MAY 19: DJ David Guetta (R) and Cathy Guetta arrive at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(70 of75)
LAS VEGAS, NV - MAY 19: Recording Artist Jason Derulo arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(71 of75)
LAS VEGAS, NV - MAY 19: Recording Artist Jason Derulo arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(72 of75)
LAS VEGAS, NV - MAY 19: Recording Artist Jason Derulo arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(73 of75)
LAS VEGAS, NV - MAY 19: Actress Chloe Grace Moretz arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(74 of75)
LAS VEGAS, NV - MAY 19: Actress Chloe Grace Moretz arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)
2013 Billboard Music Awards - Arrivals(75 of75)
LAS VEGAS, NV - MAY 19: Actress Chloe Grace Moretz arrives at the 2013 Billboard Music Awards at the MGM Grand Garden Arena on May 19, 2013 in Las Vegas, Nevada. (Photo by Jason Merritt/Getty Images) (credit:Getty Images)