Britney Spears suffers wardrobe malfunction as her zipper breaks

Singer Britney Spears suffered a wardrobe malfunction while performing during her Las Vegas show.

Spears, 33, was busting out signature moves to her 2009 single '3' on Friday when her costume burst open and revealed her complete back.

(YouTube Screen grab)

Britney was about one-third into the performance when her back zipper broke and split open.

It didn't take long for two thoughtful male dancers to rush to her side and offer some help. Trying hard to zip it back.

(YouTube Screen grab)

Several dancers took stabs at zipping her up but couldn't manage it.

Britney eventually let it go and worked the wardrobe malfunction into her routine as she bared her back for the audience.

And the entire time Spears never skipped a beat - a true showman.

(YouTube Screen grab)