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Photos of Princess Diana's most iconic fashion moments.

You'll laugh, you'll cry, you'll reach for your acid-wash jeans.

So she's baring all for Playboy a month before she turns the big 4-0 (40 is seriously the new 25, guys), and when she tells us how to wear an over-the-knee-boot, we all stop to listen. No wonder that now, more than ever, everyone is obsessed with Kate Moss. And also why we're crowning the supermodel the Glamour Style Icon of the Week. Kate burst onto the scene at age 16 when she appeared on an iconic cover of Brit style mag The Face. Then came the (in)famous Calvin Klein campaigns…

Carolyn Bessette Kennedy was the pioneer of fashion street style.

From naked sandals to headbands, white shirts to slip dresses, the Calvin Klein publicist and wife of John F Kennedy Jr predicted every new trend back in the early 1990s – and has proven an enduring muse for designers since. Vogue shortlists seven ways to channel her classic look, now.

We are looking back over some shots from her style career.

Of all my style icons, no one defines me more than the incomparable Audrey Hepburn.

In honor of supermodel Kate Moss' 41st birthday, a tribute to the 11 trends you wanted so bad after spotting 'em on Ms. Moss.

Of all my style icons, no one defines me more than the incomparable Audrey Hepburn.

The First Lady adored these fashion designers, makeup brands, and jewelry houses.