Oops, she did it again! Pop-star Britney Spears was performing on stage in Las Vegas when she twisted her ankle and sprained it in front of the entire crowd. Unfortunately, she was unable to finish her show and had to cancel two upcoming performances she has this Friday and Saturday. Ah, just in time for the fight. Niceeeeeee!

Check out the footage of Britney injuring herself mid-performance below!

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Source: TMZ