LeAnn Rimes has the ultimate 'wardrobe malfunction'

Look who couldn't be bothered to change out of her traveling outfit before going on stage at the Peppermill Casino in West Wendover, NV?
Why, it's LeAnn Rimes!

Whose dirty feet are these?

Two guesses, first one doesn't count!
And no fair looking at the "labels" section...
Is this why her nickname is LeAnn GRIMES?