Britney Spears rocks the stage with her greatest hits at the Billboard Music Awards 2016

It's Britney b**ch!

The 34-year-old pop icon opened the 2016 Billboard Music Awards on Sunday night at the T-Mobile Arena in Las Vegas with a medley of her greatest hits that completely brought the house down.

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Spears took the stage wearing a fire engine red get-up complete with a top hat and waist-length red blazer. Storming down the stairs on stage to her hit song "Work B*tch," the star looked confident and happy as the audience of A-list stars jammed along with her.

After throwing off her hat and ripping off her coat, the "...Baby One More Time" singer then segued into a series of her other biggest hits like "Womanizer," "Slave 4 U," "Breathe On Me" and "Touch of My Hands."

During "I Love Rock N Roll," Spears jumped on top of a giant electric guitar, which is an act from her successful Las Vegas residency, Britney Spears: Piece of Me.

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The sexy performance had stars like Meghan Trainor, Zendaya, Halsey, Jessica Alba and Mila Kunis out of their seats singing along to Spears' career-defining records.

While singing "Slave," Spears whipped out the original choreography from her iconic 2001 music video, a move that garnered a particularly large scream from the adoring crowd.

The mother-of-two finished her greatest hits medley with "Toxic," the song that got her one and only Grammy award of her career. Spinning around on the ground with hoards of scantily-clad male dancers, Spears looked like her old self, nailing a series of impressive dance moves.

Spears will receive the 2016 Millennium Award later in the night in honor of her legendary 20-year career in the music industry.

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