Britney Spears almost flashed the audience during Saturday's showing of her Las Vegas Piece of Me tour, as a faulty zipper suddenly left her back fully exposed.
The 32-year-old singer was onstage performing "Circus" when the back of her sequined dress opened up unexpectedly. But before the incident got out of hand, one of the singer's backup dancers pulled it up as Spears -- who didn't miss a beat -- carried on with her performance.
You can check out a clip of the incident below, courtesy of one of her fans.
Spears will do about 50 shows a year during the residency.