Selena Gomez performs at the Billboard Music Awards on Sunday, May 19. Credit: Ethan Miller/Getty Images

"Come & Get It," indeed! While performing her hit song at the Billboard Music Awards at the Las Vegas MGM Grand Garden Arena, Selena Gomez looked hotter than ever, rocking a sexy gold, cleavage-baring bodice.

Keeping the rest of her onstage ensemble fairly simple, the singer, 20, chose to wear her hair down and go completely barefoot -- matching her eyebrow-raising outfit with gold colored-jewels on her forehead and a bindi to complete her Bollywood-inspired look.

The former Wizards of Waverly Place actress was introduced by the show's host, comedian Tracy Morgan, who first flubbed Gomez's name during his opening monologue, calling her "Celine."

However, Morgan made nice with Gomez before her performance, referring to her as a "role model" to his daughter.

"My daughter loves Selena Gomez," he said. "She's a role model to girls. That's why Selena, you gotta do a song about listening to your it, 'Yes sir, right away sir.'"

The Spring Breakers actress and her off-and-on love, Justin Bieberdeclined to walk the blue carpet together.

Gomez's relationship status seemed to be far from her mind before the music event, tweeting on May 18 that she was feeling "#excitednervousanxious" about her performance.

Her upcoming album, Stars Dance, is due out this summer.