In the leadup to Halloween this year, plenty of celebs have been sharing sneak peeks of their costumes. One particular celebrity, however, has yet to model her outfit in its entirety, but yesterday shared a couple of glimpses of the ensemble to Instagram.

I am, of course, referring to Halloween enthusiast Heidi Klum. To say the German supermodel is known for going all out for the spooky holiday would be an understatement - and this year will likely be no different.

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Preparing for her annual Halloween party on Friday, the clips posted by the 46-year-old appear to feature the costume's finishing touches.

In the caption for the first clip, Klum encourages her followers to guess what the costume is based on a brief glimpse at a green prosthetic mould, presumably meant for her face. Evidently, we can look forward to Klum being completely unrecognisable as she assumes whatever character, figure or archetype she has chosen this time around.

Take a look at the clip below:

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"Halloween is almost here!" she writes in the caption. "If you are in NYC, join me tomorrow at the @amazon store at 7 West 34th Street to watch me be transformed live into a _______! (Any guesses?)"

The second clip shows Klum at a facial prosthetic fitting at Prosthetic Renaissance Makeup-FX Studio. Unfortunately, we are still none the wiser as to what the finished look will be.

Here you can see a mysterious prosthetic being fitted:

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The Project Runway's former host has been wearing these elaborate costumes since 2000, which is when she threw her first Halloween party, a Halloween party that went on to spark an annual tradition.

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Klum's past costumes include Fiona from Shrek, Jessica Rabbit, herself as part of a group of clones of herself, a Hindu goddess and an old lady. God knows what she'll be dressed up as this year, but we won't have to wait long to find out!

Heidi Klum has once again proven why she is the undisputed Queen of Halloween.

Over the last decade or so, the 49-year-old supermodel has repeatedly hit headlines every Halloween with her eye-popping and elaborate costumes - and for good reason.

Now, she's once again shown why there's nobody more dedicated to the spooky season than her, as she showcased her outfit as a worm.

In her first cheeky snap teasing this year's preparation, Klum revealed that she had undergone a full body tanning. She then shared various paints and prosthetics involved in her look.

Throughout the day, the supermodel would tease fans with various close-up glimpses at this year's costume - but I don't think anybody could have guessed that the end result would be a terrifying "Hallo-worm".

Check out the incredible finished look below:

Klum's annual Halloween parties have become the stuff of legend, but she has always made sure that all eyes are on her and that she is the best dressed of the evening. Let's take a look at some of Klum's greatest spooky looks:

2010

I'm not even sure what you'd call this camp robotic look - but it certainly was a sign that Klum took Halloween VERY seriously. Nowadays, this futuristic look wouldn't look out of place on the Fashion Week runways.

Credit: WENN Rights Ltd / Alamy 2011

This daring look is enough to make anybody's skin crawl... well, except for Klum.

Credit: WENN Rights Ltd / Alamy 2011 (Again)

Klum had not one, but two remarkable looks for Halloween 2011, as she also appeared as a chimp.

Credit: WENN Rights Ltd / Alamy 2013

Considering that Klum still looks like she's 25 despite actually being 49, we can only assume that her 2013 look showed fans what she's eventually going to look like when she's 150 years old.

Credit: Sipa US / Alamy 2014

There's something that's always bugged me about Klum's 2014 look...

Credit: Storms Media Group / Alamy 2017

"It's close to midnight and something evil's lurking in the dark..." In 2017, Klum truly was unrecognizable as Michael Jackson's 'Thriller' werewolf.

Credit: Erik Pendzich / Alamy 2018

I thought love was only true in fairy tales! Joined by husband Tom Kaulitz, the couple pulled off these incredible Shrek and Fiona costumes that could make anybody green with envy.

Credit: dpa picture alliance / Alamy 2019

In 2019, Klum stepped out in perhaps her most OTT look to date - a bizarre alien experiment gone drastically wrong. She was flanked by husband Kaulitz, who dressed as the poor astronaut who had the unfortunate pleasure of encountering Klum's creation.

Credit: Erik Pendzich / Alamy

2020

In 2020, while the world was on lockdown, Klum got her whole family involved as they appeared in a chilling short horror movie as a way of celebrating Halloween. Check it out below:

What's your favorite Klum Halloween look? Let us know in the comments.

Featured image credit: Sipa US / WENN Rights Ltd / Alamy

Heidi Klum teased fans with the very first look at her Halloween costume on Friday, October 30.

Taking to Instagram, the 47-year-old supermodel posted two videos featuring the sneak peek of this year's highly anticipated costume.

One of the posts featured a timelapse video, with the caption: "First you see me, now you don’t! The transformation begins… #HeidiHalloween2020".

Take a look at the video below:

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Heidi, with her famous blonde locks tied up, can be seen lying on a mattress.

Black and gray paint had been used to make the bed sheets resemble marble. The mom-of-four wears a white bra and low-rise panties with the same marble-like pattern. She also wears a blue protective face mask.

The German America's Got Talent judge lays completely still as a team of three paint on the model's costume, covering her legs and belly with gray and white body paint. They then paint veiny lines of black, which resemble cracks, all over her body.

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By the end of the video, Heidi’s body almost completely blends in with the bedsheets. Her left hand, both feet, her face, and hair are the only parts of her body that were not applied with gray, black, and white body paint.

While the costume is still very much an enigma, Heidi's caption, "First you see me, now you don't", seems to suggest that she wants to create the illusion that she's disappeared.

Take a look at the second video Klum posted, which sees the team applying the finishing touches: 

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Heidi, who has been married to German singer Bill Kaulitz, 31, since 2019, is renowned for elaborate Halloween costumes.

Each year, the TV personality goes all out with special effects teams and makeup artists to completely transform herself into her annual Halloween character.

Last year, she impressed her fans with a sci-fi costume. She dressed as an eerie-looking cyborg with exposed organs. The costume was made up of silver tubes and bolts which looked as though they were emerging from her flesh.

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As is the case pretty much every year, the look required extensive use of prosthetics.

As a model, actress, and fashion designer, it shouldn't come as a surprise to hear that Heidi Klum goes all out on her look for Halloween. What you may not know, however, is that her Halloween parties in New York are now world famous, and for good reason. No one is allowed to enter unless they're in full costume, no matter how prestigious the guest is. Klum does practice what she preaches, with imaginative and flawless costumes dating back all the way to 2000. You'll be shocked to see how formidable her chosen characters look each and every year. We've collected her best efforts in a list below for your viewing pleasure.

1. Forbidden fruit

2. Gold alien

3. Gothic Pippi Longstocking

4. Red witch

5. Crow

6. Sci-fi superhero

7. Cadaver

8. Ape

9. Cleopatra

10. Old Heidi

11. Butterfly

12. Vampire

13. Betty Boop

14. Jessica Rabbit

Well, while most of us will never get the chance to make it on the guest list for one of Klum's Halloween extravaganzas, at least we can get a glimpse of the outrageous costumes she has worn over the years. They're all great-looking, but holy moly does that Jessica Rabbit costume look spot-on. But she's not the only celebrity putting the effort in. For instance, did you hear about the time Channing Tatum dressed up as a unicorn to attend his daughter's preschool Halloween party?

Heidi Klum has finally revealed her highly-anticipated look for Halloween 2020... a full-on family horror movie.

Over the last 20 years, the 47-year-old supermodel has made a name for herself by stealing the show at the biggest celebrity Halloween parties.

Who could forget her no-expense-spared flesh-eating alien monster from last year? 

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And back in 2015, Klum shocked the world with her Jessica Rabbit look:

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However, with the current pandemic resulting in Halloween parties being canceled, Klum and her family have had to improvise this year - and it may be her best effort yet.

Writing on Instagram to her 7.6 million followers, the model wrote: "Halloween is different this year, but that shouldn’t stop us from getting creative at home. Be safe, be spooky, and spend time with family."

The result of their creativity? A near-six-minute horror movie featuring, toilet roll, body paint, zombie children, and a lot of laughs and scares.

Check out Klum and her family in their horror movie below:

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The plot of the movie is simple: In an effort to get her family excited about a Halloween at home, Heidi dresses her four children - Helene, 16, Henry, 15, Johan, 13, and 11-year-old Lou - as mummy's using toilet paper.

However, during a trip to the bathroom, Klum's kids are transformed into flesh-eating Zombies, and her husband, Tom Kaulitz, becomes a terrifying werewolf.

Klum must then use her body-painting skills to avoid her monster family, as they hunt for her around their home.

It may be silly and fun, but the short movie also encourages Klum's followers to be sensible and stay home and stay safe for Halloween this year.

The voiceover for the budget movie said: "This Halloween, stay at home and enjoy some quality time with the family. Just try not to kill each other."

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Speaking about Halloween during the pandemic, Klum told USA Today: "I was thinking about how we, like so many families, would be stuck at home and what we had around the house that we could make into costumes.

"To me, Halloween means creativity! That’s why I enjoy the holiday so much because it’s a chance to come up with something completely out of the box and let your imagination run wild."

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Over the last 24 hours, Klum has also shared several behind-the-scenes clips with her Instagram followers in the build-up to the movie.