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The heiress and one of her pooches get decked out for the Hiltons' annual Christmas card. Plus: Jessica Simpson, Jamie Foxx and more

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Zac Efron looks too cool for school on the set of the movie Seventeen. In between takes, he chatted up his costar Matthew Perry (not pictured).

Credit: SC/BB/Flynet

Published: Monday Dec 17, 2007 | 05:15 PM EST

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