Madonna is turning 50 in August and will soon undergo the change ... of clothes.
The drenched in sweat musclebound material marm -- who currently has the #1 album in the country -- was snapped leaving a private gym in London on Wednesday.
Madge doesn't work out her vadge in just any ol' Ballys!
Madonna's Sweaty Hot Flash
5/8/2008 3:57 PM PDT BY TMZ STAFF
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