Forbes has named Madonna the world's richest female musician, with a "conservative" estimate of $325 million as of 2007. The material girl reaps huge dividends from her tours, and she's had a few since '07. Her vanity label, Maverick Records, has grown into a respectable institution, netting Madonna millions. Extensive real estate holdings enhance Madonna's excessive wealth.
(Photo by Gareth Cattermole/Getty Images For The BFI)