Madonna's about the hit the big 5-0 this year, and is clearly battling to keep her famous bod with punishing workouts that are making her veins bulge like a bodybuilder! Good on her for keeping in such incredible shape and putting everyone's mum to shame.
Still, imagine being Guy Ritchie and having to cuddle up to that at night! Mmm... muscly!
Love your celeb ladies super-toned and muscly? Then you'll love our protein-packed Muscle Woman gallery below!