The blonde beauty opened the show at Las Vegas' T-Mobile Arena with this magnificent mashup of Work Bitch, Womanizer, I Love Rock N Roll, Breathe On Me, I'm A Slave 4 U, Touch My Hand, and Toxic!
Gurl owned the stage from the start, almost immediately shedding her top hat and coat for a super sexy red jeweled bikini — in which she writhed, danced, and straddled a giant guitar.
Watch Brit prove why she's still the princess of pop (above)!
And check out the ongoing winners list HERE!
Tags: billboard music awards, breathe on me, britney spears, i love rock n roll, medley, millennium award, music minute, nostalgia, sin city, slave 4 u, t-mobile arena, touch my hand, toxic, womanizer, work bitch