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Brit "It girls" like Lily Allen and Kate Moss drink too much, trash celebrities, and share their insecurities. Natasha Fraser-Cavassoni on what American girls can learn from it all.

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Kate Moss

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Lily Allen

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Alice Dellal

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Peaches Geldof

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Pixie Geldof

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Alexa Chung

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Agyness Deyn

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Daisy Lowe

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