Hollywood Goes Trick-Or-Treating!

Seth Browarnik/WireImage

They didn't don costumes, but Ashlee Simpson and Pete Wentz played the part of the happy couple at Miami's Cameo nightclub, where they joined in the fun at the Belvedere vodka bash.

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Holiday 2007

Hollywood Goes Trick-Or-Treating!

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Ashlee Simpson and Pete Wentz

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