Dressing well should be easy for the on-screen ingénue. After all, she's beautiful, talented, and resolutely wrinkle-free. Still, despite her youthful advantages, today's "It girl" remains sadly susceptible to style slip-ups. Innocent of any and all sartorial sins, however, are a number of notable 20-somethings. With these 10 on the rise, the future suddenly looks bright.

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