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While you were adjusting your Lady Gaga wig and filling bowls of candy for hungry little trick-or-treaters, stars were hitting hot parties in some of the coolest costumes (or were they cool parties and hot costumes?) we've seen. Click through our gallery to see Kim Kardashian as a vampy Little Red Riding Hood, Heidi Klum as a larger-than-life robot and so many more!
MORE:• Celebrity Halloween Costume Ideas • Movie & TV Halloween Costume Ideas
