Britney Spears performed in Vegas last night and lost her hair weave halfway through a performance.

Poor Britney suffered the wardrobe malfunction during a rendition of her 2004 hit Do Something and, of course, someone caught it on tape.

Brit-brit’s hairpiece initially seems to cling to her back and hang there for a few seconds, before an ill-timed jump causes it to fall to the ground.

Watch the video below: