Naughty or nice?

Heidi Klum was certainly in the Christmas spirit Tuesday night! The 38-year-old Project Runway host tweeted a picture of herself in a super sexy Mrs. Claus costume. "Mrs. Claus going to work," she wrote.

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Wearing the quintessential red, belted Santa coat, the supermodel ditched the traditional pants and boots. Instead, she flaunted her long, toned legs and rocked a pair of high- heeled, white furry boots.

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Klum doesn't only get festive for the Christmas holiday. The model and hubby Seal are renowned for their Halloween parties. This October, Klum dressed as a bald, skinless corpse! She was wheeled in on a gurney, escorted by two bloodstained doctors.

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