While she was singing "Circus," the pop star's top almost came completely off as the back opened up and she came dangerously close to flashing the audience.
Britney handled the whole thing like a total pro and just held still while one of her backup dancers quickly tried to remedy the situation.
In a new interview with The Insider, BritBrit opens up about the wardrobe malfunction, saying that basically, the show must go on.
"That's the attitude you have to have," she explained. "The dancers were helping me with the back part of my dress. It was really kind of crazy."
Despite the shaky start in the wardrobe department during one of her first few shows, Britney's Las Vegas show seems to be doing really well and has even had some celebrity cameos by Miley Cyrus, Lance Bass and Mario Lopez.