Heidi Klum Offers a Sneak Peek at Her Halloween Costume

(Instagram)

Heidi Klum spends most of her life being perfectly gorgeous, but she makes an exception each Oct. 31. On the very day that many women are dressing up as a sexy fill-in-the-blank, the Project Runway star sports an elaborate, sometimes very unsexy costume while hosting her annual Halloween bash.

On Friday, she teased her Instagram followers with photos that showed she will be doing the same later this month.

“It’s almost time for my favorite holiday!” she captioned one of the pics. “Costume prep time with the team at @prorenfx Can’t wait for Halloween!"

If "prep time” sounds excessive, then you have not seen Heidi’s looks from previous years.

Related: Heidi Klum’s Halloween Costume Countdown

Although, Klum’s 2015 costume seems particularly intricate — even for her. The photos and video clips she shared show the people of the New York-based company Prosthetic Renaissance covering her with plaster and painting her a shade of blue.

(Instagram)

“Thanks @prorenfx team for making my crazy costume idea a reality,” she captioned another.

In the past, the 42-year-old America’s Got Talent judge has disguised herself as a very detailed butterfly, a human cadaver, and an apple and serpent from the Garden of Eden, among other things.

Any guesses as to what she’ll dress up as this year? Maybe the Cookie Monster or perhaps a giant blueberry?

Whatever it is, it won’t be a supermodel. Klum needs a day off.