Poor Britney Spears.

It's already been a tough enough week for her, with rumors of her dad drugging her and that someone knocked her up with her third child. That was false, but she still could have done without this latest wardrobe malfunction.

In this video, a male dancer - possibly strapping hunk Chase Benz, it's hard to see behind that S&M mask - accidentally rips out a piece of her weave.

It's not that embarrassing or anything, but now everyone knows her hair is fake, y'all! As if the famous head-shaving hadn't cleared that up long ago.

Anyway, peep the memorable Circus tour moment below. Hey, it's better screaming "rock out with your c*cks out" or giving props to the wrong city:

Britney Spears Hair Malfunction

THG SIDE NOTE: Hair malfunction aside, WTF is going here? Parents actually bring teens and 'tweens to this? It's one step away from being that sick, scrambled porno on the premium cable channel that doesn't come in but you watch anyway.