Iggy Azalea and Ariana Grande

Iggy Azalea and Ariana Grande Perform at Billboard Music Awards

Ariana Grande and Iggy Azalea shared the stage for a mash-up performance at Sunday’s 2014 Billboard Music Awards. Joined by the University of Las Vegas cheerleading squad, the Aussie rapper kicked things off with a Clueless-inspired performance of her hit “Fancy” with Charli XCX.

Decked out in black and white, Ariana followed with her mod-themed set for “Problem,” on which Iggy joined her for the second time following Wango Tango last weekend.

They received praise from their peers including Kelly Rowland, who wrote, “Ariana & Iggy are killing it! Get it ladies!”

See the femme fatales work the stage.