Halloween queen Heidi Klum teases this year's costume months in advance

Charles Trepany

When it comes to Halloween costumes, Heidi Klum has got everybody beat.

The former "Project Runway" host has earned a reputation as the queen of Halloween for donning elaborate wigs, detailed dresses and even prosthetics for her costume transformations. In years past, she's been the werewolf from Michael Jackson's "Thriller" music video, Princess Fiona from "Shrek" and a pack of clones.

So what kind of look does the 46-year old have cooking up in her cauldron for this year? While she's not unveiling her costume just yet, she took to Instagram to offer a sneak peek of what its prep entails.

"HALLOWEEN preparation," she wrote. "don’t move a muscle!!!!!!!!!! #heidiklumhalloween #heidiklumhalloween2019"

The video shows Klum holding a pose in heels and undergarments as someone flashes a device at her from different angles.

More: Heidi Klum's Shrek Halloween costume deserves an Oscar (seriously)

Klum revealed to USA TODAY last year her secret to a stunning Halloween costume: confidence. 

"You have to feel amazing in it," she said. "You look in the mirror and you’re like, ‘Yeah, that’s good.’ At the end of the day you have to like it yourself, right?"

More: Heidi Klum, the queen of Halloween, has this advice for finding the perfect costume

This article originally appeared on USA TODAY: Heidi Klum, the Halloween queen, is already prepping her costume