The German supermodel spent over a whopping six hours on her transformation that included a lot of prosthetics and body paint.
An army of makeup artists and technical experts can be seen in the videos, rushing around tending to her artificial body as she sat infant of a window where fans can watch the process live.
Her transformation was also filmed on Amazon’s “Halloween with Heidi Klum” livestream, where she gave viewers a technical run down of the process with a fascinating commentary.
Even though she had invested more than six hours on the masterpiece, what she has transformed into still remains unclear.
In a clip on her Instagram, Heidi can be heard saying: “I look like a chicken,” as she stepped into the gooey rubber suit.
One particular snap got fans attention as she tucked into some spaghetti while her internal organs were spilling out of the costume – not a photo for the weak hearted!
The model’s 2019 Halloween costume is similar to when she previously dressed up as a human body without any skin.
The comments started rolling in on Heidi’s Instagram page as they gathered to speculate what her costume could be this year.
One fan wrote: “It’s Sil from Species!!!”
While another guessed: “I’m getting strong Robocop vibes from this.”
A third commented: “I think she’s the Granny in IT chapter 2 and her husband will be Pennywise.”
The model has fans eagerly anticipating her outfits every year. “I look forward to this every year,” one fan gushed.
Another commented: “Literally no one does Halloween better than you do,” accompanied wth clapping emoji’s.
A third said: “I live for you costumes.”
Heidi gets her whacky ideas “from my crazy brain up there,” she told fans during the livestream.
The very same brain, she continued, “that will be exposed today” and even “possibly glowing.”
The supermodel holds an annual Halloween event which is attended by countless famous faces.
In 2013, to poke fun at herself turning 40, she transformed into a wrinkly grandmother, which went down a hit.
Heidi’s Halloween outfit choices haven’t always gone down well after she rattled some cages when she dressed up as a Hindu goddess in 2008.
But this year the German beauty managed to sit completely still during the epic process and fans hope with this much effort the end result will be literally out of this world.
