The stars came out for the 2011 Billboard Music Awards at the MGM Grand Garden Arena May 22, 2011 in Las Vegas, Nevada.

Some wore pants, some wore suits, some wore dresses, but everyone looked amazing. Selena Gomez filled out her extremely sexy dress, which showed off her waist. Ke$ha got dolled up and looked extravagant. Nicki sported a baby blue studded halfway see-through body suit! Other stars on the white carpet included Nicole Kidman, Kelly Rowland, Taylor Swift, Trey Songz, and so many more!

Nicki Minaj & Kelly Rowland

Rihanna & Fergie

Travis Barker & Lady Antebellum

Taylor Swift & Matthew Morrison

Selena Gomez & Nicole Kidman

Mary J. Blidge & Michelle Williams

Trey Songz & Ke$ha

Keri Hilson & NeYo