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Lady GaGa is gracing the cover of September's British Vanity Fair, clad only in a long gray wig.

In a photo shot by Nick Knight, GaGa looks surprising subdued, with pale makeup and flashing a peace sign for the camera.

The pop star and fashion icon is currently on the road for her Monster Ball 2010 tour headed for a show in Phoenix tomorrow night, where she took a day off to pose in the hot Arizona desert clad in leather:

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"Days off in the AZ Desert: Cactus fashion + Tequila. Can't make me take off my leather, I would rather faint and die of glamour," she tweeted.

Gives a new meaning to the words hot fashion!