Heidi Klum is the queen of Halloween, throwing an over-the-top party each year with an equally over-the-top costume. The Project Runway host has already teased her costume ahead of the party on Instagram.

In a series of posts, Klum posted photos and videos of herself wearing some sort of plaster suit with a horn on her head.

"It's almost time for my favorite holiday!" she wrote. "Costume prep time with the team at @prorenfx Can't wait for Halloween!"

In past years, Klum has dressed as Cleopatra, a corpse, an alien on stilts and Lady Godiva.

"I like be the queen of something!" Klum told Us Weekly. "I always like to surprise. I don't like to tell people what I'm gonna do because people have a certain expectation of what it's gonna be like. I like to just show up and not tell anyone what it's gonna be."

Any guesses on what Klum will go as this year?

image courtesy of INFphoto.com