People Special25 Best Celeb Photos of '07

It's a Star Tracks bonanza! Brad the Dad, Ashlee's prom night, Lindsay in a bikini (and an ankle bracelet) and more

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HALLOWEEN MASH-UP

A showgirl? A paparazzo? Or, a fiesta queen? Only Britney Spears knows as she dons a variety of costumes – including a pink zebra ensemble – during Heidi Klum's annual Halloween bash at Hollywood hot spot the Green Door.

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Credit: Fame Pictures

Updated: Tuesday Dec 18, 2007 | 06:00 AM EST

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