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SHOCK FACTOR photo | Kristin Cavallari

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SHOCK FACTOR

After enjoying a big bash in Vegas for her 21st birthday, Kristin Cavallari keeps the party going, hitting up L.A. hotspot Hyde Lounge with friends Tuesday night.

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Credit: GARRY SUN/ Bauer-Griffin

Published: Thursday Jan 17, 2008 | 12:15 PM EST

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