Heidi Klum in most bloody, gory, and over-the-top costume yet at 20th Annual ...

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She is known as the queen of Halloween.

And Heidi Klum may have still outdone herself at her latest celebration.

The 46-year-old German model gave her guests the shock of a lifetime as she was a gory humanoid alien on the attack while arriving at her 20th Annual Halloween Bash in New York City on Thursday.

Wow factor: Heidi Klum gave her guests the shock of a lifetime as she was an experiment gone horribly wrong while arriving at her 20th Annual Halloween Bash in New York City on Thursday

Wow factor: Heidi Klum gave her guests the shock of a lifetime as she was an experiment gone horribly wrong while arriving at her 20th Annual Halloween Bash in New York City on Thursday

She gave fans an inside look into the several hour long process as she sat in front of a glass window in an Amazon store in the Big Apple prior to the event.

All the hard work seemed to pay off as she looked absolutely horrifying while arriving in a quarantined bioharzard capsule alongside new husband Tom Kaulitz.

Earlier in the night she was documenting the costume process on social media. 

Insane: The 46-year-old German model looked absolutely horrifying while arriving in a quarantined capsule

Insane: The 46-year-old German model looked absolutely horrifying while arriving in a quarantined capsule

Intricate: It was definitely her most bloody, gory and over-the-top look yet

Intricate: It was definitely her most bloody, gory and over-the-top look yet

Heidi Klum is letting her fans see how she is getting made up for Halloween this year. 

the star has a habit of dressing over-the-top for the holiday.

The TV vet took to social media as well to document the change. But even though her makeup as well underway by lunch time in Manhattan, it is still not clear what she has gone as. 

Mystery look: Heidi Klum is letting her fans see how she is getting made up for Halloween this year

Mystery look: Heidi Klum is letting her fans see how she is getting made up for Halloween this year

Sharing it with everyone: On Thursday morning the supermodel sat in front of a glass window in an Amazon store in New York City so the transition from natural beauty to crazy costume could be seen in all its glory

Sharing it with everyone: On Thursday morning the supermodel sat in front of a glass window in an Amazon store in New York City so the transition from natural to crazy costume could be seen in all its glory

A big backside: The cover girl grabbed her backside as professionals worked on her look

Hard at work: Her team could be seen busily applying the prosthetics

A big backside: The cover girl grabbed her backside as professionals worked on her look

She didn't seem to mind eating standing up: The model captioned this shot, 'Pasta and prosthetics'

She didn't seem to mind eating standing up: The model captioned this shot, 'Pasta and prosthetics'

She said in her caption: 'I‘ll be getting ready all day at @amazon Books - 7 W 34th St in Manhattan. Come say hi! @amazonprimevideo #heidiklumhalloween #heidiklumhalloween2019.'  

The star appears to be some type of green alien, but it is still too early to tell. Even when the mask was applied, her followers were stumped.

Some guessed a ghoul from Mars Attacks, Freddy Krueger, the white walker, the alien from Alien: Covenant, the creature from The Shape Of Water and Suspiria.

Exposed: The creature Heidi dressed has had a chunk of its green flesh torn off at the thigh to reveal the sinew underneath

Gore: Its midsection was also ripped open allowing the offal to spill out

Taking it in stages: Heidi gave her fans closer views of various specific elements of her look

Who is she? The star appears to be some type of green alien, but it is still too early to tell. Even when the mask was applied, her followers were stumped

Who is she? The star appears to be some type of green alien, but it is still too early to tell. Even when the mask was applied, her followers were stumped

Run! The mask was gruesomeness with light green skin, extra flash on the head and red cut marks over one cheek

Come on Heidi, tell us! Some guessed a ghoul from Mars Attacks, Freddy Krueger and Suspiria

Come on Heidi, tell us! Some guessed a ghoul from Mars Attacks, Freddy Krueger and Suspiria

Kiss from a creepy crawler: At one point, her husband came in to visit and she gave him a kiss which made for a weird clip. He seemed to have some of the mask on his nose

Kiss from a creepy crawler: At one point, her husband came in to visit and she gave him a kiss which made for a weird clip. He seemed to have some of the mask on his nose

Heidi, stop, it's too scary! At one point she stuck her tongue out when in her mask

Painful: There was melted skin over her robot parts which made her part droid

Heidi, stop, it's too scary! At one point she stuck her tongue out when in her mask

The mask was gruesomeness with light green skin, extra flash on the head and red cut marks over one cheek.

At one point, her husband came in to visit and she gave him a kiss which made for a weird clip. Tim Gunn also came by to check on her.

It all began before lunch when she was seen in a black robe with glasses on giving two thumbs up.

In her latest video, Heidi has her hair in a cap and her face looks different. She has freckles and a very large top lip almost looking a bit Kardashian.

The start: Heidi Klum is letting her fans see how she is getting made up for Halloween this year. On Thursday morning the supermodel sat in front of a glass window in an Amazon store in New York City so the transition from natural beauty to crazy costume could be seen in all its glory

The start: Heidi Klum is letting her fans see how she is getting made up for Halloween this year. On Thursday morning the supermodel sat in front of a glass window in an Amazon store in New York City so the transition from natural to crazy costume could be seen in all its glory

On view: The TV vet took to social media as well to document the change. But even though her makeup as well underway by lunch time in Manhattan, it is still not clear what she will go as

A team: She was surrounded by hair and makeup people who got her ready for the big event

On view: The TV vet took to social media as well to document the change. But even though her makeup as well underway by lunch time in Manhattan, it is still not clear what she will go as

A crowd: By lunch there were at least 50 people outside the window taking photos

A crowd: By lunch there were at least 50 people outside the window taking photos

All eyes on Klum: She said in her caption: 'I‘ll be getting ready all day at @amazon Books - 7 W 34th St in Manhattan. Come say hi! @amazonprimevideo #heidiklumhalloween #heidiklumhalloween2019'

Waving to her fans: The star seemed to love that so many people had gathered outside

All eyes on Klum: She said in her caption: 'I‘ll be getting ready all day at @amazon Books - 7 W 34th St in Manhattan. Come say hi! @amazonprimevideo #heidiklumhalloween #heidiklumhalloween2019'

Behind the scenes: A look at the crowd in an image posted by Klum herself

Behind the scenes: A look at the crowd in an image posted by Klum herself

Work it: The ex of Seal was seen in a black robe with black and white boots

Work it: The ex of Seal was seen in a black robe with black and white boots

The day before she was seen dropping a new hint about her traditionally epic Halloween costume.

She went on social media Wednesday and fans flocked to the comments section to throw out their guesses.

The supermodel throws an over-the-top annual bash for the spooky holiday and her costumes get crazier and more elaborate every year. 

She sure loves this stuff: She sat with a cap on her head, which covered her braids

She sure loves this stuff: She sat with a cap on her head, which covered her braids

Surprising: In her latest video, Heidi has her hair in a cap and her face looks different. She has freckles and a very large top lip almost looking a bit Kardashian

Surprising: In her latest video, Heidi has her hair in a cap and her face looks different. She has freckles and a very large top lip almost looking a bit Kardashian

She won't take her wedding band off: The catwalk queen had her ring covered as makeup was applied to her hand

She won't take her band off: The catwalk queen had her ring covered as makeup was applied to her hand

Painted lady: And her legs and feet were also seen being covered in the makeup

Painted lady: And her legs and feet were also seen being covered in the makeup

She sure is brave: In this image, Heidi is seen stepping into her prosthetic suit. She said she looked like a 'chicken'

She sure is brave: In this image, Heidi is seen stepping into her prosthetic suit. She said she looked like a 'chicken'

Holy smokes! She then came out in the green outfit with a metal cover on her privates

Such a change: Her chest was large and her insides were exposed

Holy smokes! She then came out in the green outfit with a metal cover on her privates

Digging in: She took time to have some spaghetti take out food

Digging in: She took time to have some spaghetti take out food

A better look: Here she showed off her intestines and other gruesome features

A better look: Here she showed off her intestines and other gruesome features

Is this ok? She touched her fake breasts and smiled while her crew worked on her

Is this ok? She touched her fake and smiled while her crew worked on her

Four on her: She had at least four people working their magic in this photo as the crowd grew

Four on her: She had at least four people working their magic in this photo as the crowd grew

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