Look at fellow diva Jennifer Lopez, who ranks No. 12 on our list this year, but whose ambitious marketing plans may soon stretch the J-Lo brand tighter than her Hilfiger hipsters.

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Lo explains why the risk may be worth taking at auction, compared to buying art through a gallery or middleman.

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But if Mr Lo really wants his new, more scientific technical analysis to catch on, he may need to find a way to make it look good on the telly.

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