Pretty girls make pretty music -- and sometimes, that music gets stolen.

Iggy Azalea and Britney Spears' collaboration "Pretty Girls" was leaked early Saturday morning. The song, which will be featured on Britney's upcoming ninth studio album, has already made it to the airwaves on a few radio stations.

The sunny jam is definitely going to be a summer anthem, but this isn't the version of the collaboration that the pop stars want you to hear.

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The Australian rapper, 24, took to Twitter to ask her fans to hold off on sharing the tune until its official release on Tuesday, May 5. "I know its [sic] hard," she wrote. "I'm excited too!" Iggy also clarified that both she and Britney, 33, are singing the chorus.

Iggy belting out a tune? That's news to us!

But why the campy space theme? The music video pays homage to the cult classic "Earth Girls are Easy," starring Geena Davis and Jeff Goldblum.

The blonde duo look every bit the part of '80s screen queens in the video, too -- Iggy sported crimped locks and a denim vest and high-waisted shorts combo, while Britney rocked an off-the-shoulder leopard print crop top and neon triangle earrings.

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According to Brit, the throwback vid, which was filmed last month in Studio City, Calif., features one of her fave dance scenes ever!

There actually is a way to legally listen to "Pretty Girls" before Tuesday, though -- if you 're in Los Angeles. On Sunday, May 3, a Uber riders in the City of Angels can request to be picked up in a Britney Spears SUV between 3 p.m. and 9 p.m. PT.

Weird... but okay?

"Pretty Girls" will make it's TV debut when Iggy and Britney perform at the 2015 Billboard Music Awards on May 17. Here's to hoping Brit's ankle injury is healed by then!