Britney Spears, Taylor Swift, Nicole Kidman, Joe Jonas and many more dazzle on the red carpet in Las Vegas
Britney Spears and Jason Trawick
Britney Spears (in Norma Kamali) and beau Jason Trawick were all smiles Sunday night. The pop star performed the show's opening number with Rihanna and later joined Nicki Minaj onstage for "Till The World Ends."
Credit: Kevin Mazur/WireImage