We can't believe it either — the one-and-only Madonna turns 54 years old today. When people think of this pop sensation, usually two things come to mind: music and muscles. The famously fit singer always makes exercise and healthy living a priority, and it shows. Whether she's entertaining thousands or just being photographed by paparazzi, Madonna's fit body is always in full view. In order to celebrate her birthday and fit life, learn how she works for that toned body!
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