Joining rapper Flo Rida onstage during an impromptu performance, the beauty danced in front of a large audience and even slapped her butt at one point, before giving Flo Rida a high-five when the song was over.
Upton shot to fame last year after doing the Cat Daddy for famed photographer Terry Richardson. Wearing just a tiny bikini, she danced to music by the Rej3ctz. The video quickly went viral.
Meanwhile, earlier this week, Samsung accidentally revealed in a press release that Upton will grace the latest cover of Vogue's U.S. edition. The 20-year-old model has yet to appear on the magazine's cover, though she has already appeared on the cover of Vogue's Italy and U.K. editions.
The company issued a press release, stating, “Kate Upton can chat about her upcoming Vogue cover in June, where she’s taking her bikini for Spring Break after shooting the SI cover in Antarctic … and maybe do the Dougie!,” the Daily Mail reported.
The information has been neither confirmed nor denied by publisher, Condé Nast.
While Upton is the latest “It” girl, that hasn't always been the case.
Last February, Sophia Neophitou, a fashion editor who oversees the Victoria’s Secret Fashion Show lineup, said about Upton, according to ABC: "She's like a footballer's wife, with the too-blond hair and that kind of face that anyone with enough money can go out and buy."
Upton might not make the cut for Victoria's Secret, but Vogue has been more than willing to work with her.
Watch her rock the stage with Flo Rida below: