Britney Spears Shares Photo of Her Bruised Legs to Show How Hard She's Working on Vegas Residency

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When Britney Spears sang, "You better work, b*tch," she really wasn't messing around!
The pop star shared a painful-looking new picture with her fans on Monday, revealing the toll rehearsing for her Las Vegas residency show at Planet Hollywood has taken on her legs.
"Someone jokingly asked me what the hell I did yesterday," the "Toxic" singer wrote. "Check out my bruises that's what I did! Working hard on the new show! Get ready!!"

Ouch!
Britney is clearly hard at work preparing for the show, which returns on Feb. 13 after being extended through 2017.
Meanwhile, you can add the candid snap to the growing list of evidence that Britney has the realest Instagram account in the game.
Watch the video below to see more of her delightfully bizarre shares!