Forbes magazine has released its 25th annual billionaires list, and holding down the top spot again is Mexican telecom mogul Carlos Slim Helu. But there are some newcomers like American Sara Blakely. The 41-year-old founder of Spanx, the body-shaping undergarment company, is the youngest self-made woman to join the club.
Spanx Founder Makes 'Forbes' Billionaire List
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