Don't mess with Britney, b*tch. The singer reportedly called out an audience member who heckled her on stage during one of her recent Piece of Me shows in Las Vegas at Planet Hollywood Hotel & Casino. Footage has surfaced online (see below) of the "Pretty Girls" singer calling someone in the crowd "f**king assholes." Although it's not entirely clear what prompted that response, the Huffington Post theorizes that it was because someone called her a "fat b*tch," which you can hear vaguely in the clip.

 "Fucking assholes" - Britney.

A video posted by Grant D (@grantadamd) on Apr 15, 2015 at 10:23pm PDT


Fans took to Twitter following the performance to defend Spears.

Meanwhile, Spears is prepping the release of her new collaborative single with Iggy Azalea titled "Pretty Girls," which is due out May 5. The two pop stars were spotted filming the visual for the track, which has an '80s flair.

Azalea spoke about working with Spears in an interview with Access Hollywood

"[Working with Spears was] awesome," she told them. "We collaborated so many months ago now, it's been a longtime in the making, figuring out whose album it's going to be on. It's going to be on hers and I'm super excited for it."

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