The supermodel's feathery ensemble wasn't her first to be compared to the "Sesame Street" character.
The supermodel's giant invertebrate get-up was, unsurprisingly, a complicated undertaking.
"I don't want to let my Halloween fans down, or myself," said Klum of the costume, which she said took several months to make.
"That's something you talk about in therapy," "Jimmy Kimmel" guest host Nicole Byer told the supermodel.
The supermodel went all out this year, dressing as an alien with her brains, muscles, and intestines fully exposed.
Every Halloween, Heidi Klum goes all out with her outlandish costumes, ranging from a werewolf to Jessica Rabbit.
The supermodel married the German guitarist on a yacht in Capri, Italy, over the weekend.
Congrats to the “America’s Got Talent” judge and her beau!
Heidi Klum, Beyoncé, Justin Timberlake and LeBron James were among the famous who embraced the spooky holiday with their wild outfits.
Who'll give Heidi Klum a run for her money this year?