Singers Charles Kelley (L) and Hilary Scott fashion in Las Vegas, Nevada

Singers Charles Kelley (L) and Hilary Scott fashion in Las Vegas, Nevada

Singer Rihanna hairstyle and dress in billboard music award

Singer Rihanna fashion in billboard music award

Singer Kylie Minogue arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer Kylie Minogue arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer Kesha dress and hairstyle at the 2011 Billboard Music Awards

Singer Kesha fashion at the 2011 Billboard Music Awards

Singer Justin Bieber accepts the Digital Artist of the Year award onstage during the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer Justin Bieber accepts the Digital Artist of the Year award onstage during the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer Fergie of the Black Eyed Peas arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer Fergie of the Black Eyed Peas arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer and actress Selena Gomez arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Singer and actress Selena Gomez arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Recording artist Nicki Minaj arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Recording artist Nicki Minaj arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Musicians Charles Kelley, Hillary Scott and Dave Haywood of the band Lady Antebellum fashion in billboard music award

Musicians Charles Kelley, Hillary Scott and Dave Haywood of the band Lady Antebellum fashion in billboard music award

Musician Taylor Swift arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Musician Taylor Swift arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

celebrity dresses in bilboard awards

celebrity dresses in bilboard awards

britney and rihanna hairstyle in bill board music award 2011

britney and rihanna hairstyle in bill board music award 2011

Actress Nicole Kidman arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Actress Nicole Kidman arrives at the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Beyonce stays fierce dress

Beyonce looks fierce on the balcony of the Hotel Ritz as she poses for a Harper's Bazaar photo shoot

Tonight's Billboard Music Awards in Las Vegas will feature some of the industry's biggest stars, including Beyonce Knowles who's getting the prestigious Millennium Award!