AceShowbiz -

Another preview from the music video of Britney Spears and Iggy Azalea's "Pretty Girls" has surfaced online. Following several clips and pictures showing the two singing and dancing in '80s outfits, the latest leak offers glimpses at the pop diva partying with her girls while her raptress collaborator walks out a pool dressing like an alien.

After being teased for months, "Pretty Girls" was finally released last week. Its music video, inspired by 1988 sci-fi comedy "Earth Girls Are Easy", was shot last month in Los Angeles, but there's still no word on when it will finally arrive in full.

"I do a makeover for her and we go to a club," Britney teased in an interview last month. "The best part about it was just us coming together with the clothes and doing the '80s haircuts. We were all about being characters, so it was kind of funny for us. We weren't taking ourselves so seriously."

Britney and Iggy are reuniting this weekend to deliver the first live TV performance of their collaboration at the 2015 Billboard Music Awards.