We've got to admire Madonna for her daily treks to the gym, though the task seems less daunting when she lives next door to her very own $12 million fitness center [1]. The price tag is hefty, but Madonna can afford to work out like a queen especially since she just topped Forbes' list of the Highest Earning Female Musicians of 2007 [2] with an income of $72 million. Plus, with her new album coming our way [3] in April and her ground breaking $100 million Live Nation contract [4] last October, 2008 should be another amazing year for the icon. One thing is for sure — Madonna works (and works out) hard for the money.

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Bauer-Griffin [5] and Pacific Coast News [6]