Attention, trend trackers!

From Tyra’s nude ensemble to Kim’s simple out-on-the-town look, here are seven days of celebrity looks that popped up at A-list events worldwide last week.

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Tyra Banks :: November 9, 2009

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Rihanna :: November 10, 2009

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Scarlett Johansson :: November 11, 2009

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Kristen Stewart :: November 12, 2009

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Michelle Obama :: November 13, 2009

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Ciara :: November 14, 2009

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Kim Kardashian :: November 15, 2009