Few celebrities have made Halloween as much a part of their public identity as Heidi Klum. For more than two decades, the model, television personality, and producer has turned her annual Halloween celebration into a showcase for elaborate character transformations.

What makes Heidi Klum Halloween costumes especially memorable is that they rarely stop at clothing. Her most famous looks have involved prosthetics, body makeup, masks, special-effects work, choreography, and sometimes an entire cast of performers. Her 2023 peacock costume, for example, involved Klum portraying the bird while nine other people helped create its feathers and claws.

Her approach has also evolved considerably. Early costumes were relatively simple, while later transformations became increasingly ambitious. In 2022, she famously appeared as a giant earthworm; in 2023, she became a peacock; in 2024, she and Tom Kaulitz transformed into E.T.; and in 2025, she took on Medusa.

This guide looks at some of her most memorable Halloween costumes, explains why they stand out, and examines how Klum transformed celebrity Halloween dressing into a form of performance art.

Key Takeaways

• Heidi Klum’s Halloween costumes are known for transformation rather than conventional fashion.
• Her memorable looks include the worm, peacock, E.T., Fiona, Jessica Rabbit, and Medusa.
• Many of her costumes depend on professional prosthetics and special-effects makeup.
• Klum often builds a complete character rather than simply wearing a themed outfit.
• Her Halloween tradition has developed from relatively simple costumes into highly elaborate productions.
• The creativity and commitment behind the costumes are a major reason they continue to attract attention.

Biography Table

Klum’s television career has also received major industry recognition. The Television Academy’s 2013 records list her as the winner of Outstanding Host for a Reality or Reality-Competition Program for Project Runway.

Why Heidi Klum’s Halloween Costumes Are So Memorable

The appeal of Klum’s Halloween looks comes from their scale and unpredictability.

A typical celebrity Halloween costume might involve a recognizable dress, makeup, wig, or movie-inspired outfit. Klum frequently takes the opposite approach. She often wants viewers to question what they are looking at before realizing that the person inside the transformation is Heidi Klum.

That philosophy explains why her costumes have included creatures, fictional characters, aging transformations, fantasy figures, and even an enormous invertebrate.

Her costumes also demonstrate a willingness to sacrifice traditional glamour. Rather than always emphasizing her appearance as a supermodel, Klum often deliberately obscures it.

The result is a Halloween tradition based on transformation rather than beauty.

The Most Memorable Heidi Klum Halloween Costumes

1. The Giant Worm — 2022

Klum’s 2022 worm costume became one of the defining moments of her Halloween history.

Instead of dressing as a glamorous celebrity or familiar fictional character, she became an enormous earthworm. The costume covered her body almost completely and used an unusual, elongated shape that made her instantly difficult to recognize.

The idea was memorable precisely because it was so unexpected.

Klum debuted the costume at her 21st annual Halloween party, where she leaned into the absurdity of becoming a creature that would rarely be considered an obvious Halloween choice.

The worm also demonstrated one of the central principles behind her best costumes: the concept does not have to be conventionally beautiful to be successful.

2. The Peacock — 2023

In 2023, Klum transformed into a peacock, but she did not attempt to create the entire bird by herself.

She wore a blue bodysuit and elaborate facial covering while nine additional performers helped represent the peacock’s feathers and claws. The performers formed a coordinated visual display behind her, creating the appearance of a living, moving bird.

This was an important evolution of the Klum Halloween concept.

The costume was not simply something she wore. It became a performance involving multiple people.

That distinction helps explain why the look attracted so much attention. The costume worked from a distance, but the details became even more interesting when viewers understood how many people were involved in creating the final image.

3. E.T. — 2024

Klum’s 2024 Halloween transformation was inspired by the extraterrestrial character from the 1982 film E.T. the Extra-Terrestrial.

She and her husband, Tom Kaulitz, appeared in elaborate matching E.T. costumes using professional prosthetics. Klum’s version included the character’s distinctive appearance along with a bowl hat and black scarf inspired by the film.

The transformation was particularly impressive because Klum’s recognizable facial features essentially disappeared beneath the prosthetic work.

She later explained that the costume was physically demanding, particularly because of the weight and construction of the headpiece. The preparation also involved a large professional team.

This costume illustrates how Klum’s Halloween process has moved far beyond selecting clothes and applying makeup. Her looks increasingly resemble productions involving costume design, prosthetics, makeup artists, planning, and performance.

4. Medusa — 2025

For Halloween 2025, Klum chose one of mythology’s most recognizable figures: Medusa.

The costume featured a highly transformed appearance with green makeup, prosthetics, a bald cap, snakes, and an intentionally frightening face. Her husband, Tom Kaulitz, appeared as Perseus, creating a narrative connection between the two costumes.

Klum had teased the costume before Halloween, indicating that she wanted the finished character to look particularly ugly and frightening. She also described her interest in using moving snakes as part of the transformation.

The Medusa costume demonstrates another recurring feature of her Halloween strategy: taking a familiar concept and pushing it toward extreme physical transformation.

5. Fiona from Shrek — 2018

Klum’s Fiona costume from 2018 remains one of her most recognizable character transformations.

Rather than simply wearing a green dress and calling herself Fiona, Klum underwent a full transformation into the Shrek character.

Tom Kaulitz joined her as Shrek, making the costume a coordinated couple’s transformation. Klum had reportedly wanted to create the pairing for some time before finding someone willing to participate in such an elaborate costume.

The look captured an important part of what makes her costumes effective: the character is immediately recognizable, but the execution goes far beyond a standard themed outfit.

6. Jessica Rabbit — 2015/2016 Era

Klum has also explored glamorous fictional characters rather than relying exclusively on monsters and creatures.

Her Jessica Rabbit transformation is frequently included among her notable Halloween looks. The character allowed Klum to combine Hollywood glamour with extensive prosthetic and makeup work.

Her interpretation demonstrates that a successful celebrity Halloween costume does not have to be frightening. It can instead focus on recreating a recognizable character through silhouette, makeup, hair, costume construction, and performance.

7. The Werewolf From Michael Jackson’s “Thriller” — 2017

Another memorable transformation came when Klum portrayed the werewolf associated with Michael Jackson’s “Thriller” music video.

The concept connected Halloween with one of the most recognizable pieces of horror-pop culture.

Rather than simply wearing a werewolf mask, Klum approached the look as a character transformation. Her extensive makeup and prosthetics helped shift her appearance away from that of a conventional celebrity costume.

The costume also fit her preference for recognizable cultural references that can be dramatically reinterpreted through special-effects work. Her werewolf look is among the costumes documented in retrospectives of her Halloween history.

How Heidi Klum Halloween Costumes Have Evolved

One of the most interesting aspects of Klum’s Halloween history is the gradual increase in complexity.

Her early approach was much simpler. In discussing her first Halloween party, Klum recalled wearing a black leather, dirndl-inspired outfit and doing her own hair and makeup because she did not yet have access to the special-effects professionals she later worked with.

Over time, her process changed.

This progression is important because it shows that Klum’s Halloween reputation was not created by one costume.

It developed over many years as she gained access to increasingly specialized makeup artists, prosthetics experts, costume designers, and production teams.

What Makes Her Costumes Different From Typical Celebrity Halloween Looks?

They Hide the Celebrity

Klum’s modeling career is based partly on recognizability, fashion, and physical presentation. Halloween gives her the opportunity to reverse that.

A successful Klum costume can make people forget they are looking at a famous model.

That is particularly evident in costumes such as E.T., Fiona, the worm, and Medusa.

They Tell a Story

Many of her costumes communicate more than a visual theme.

The 2025 Medusa costume was paired with Tom Kaulitz as Perseus. The 2024 E.T. costumes were designed as a couple. The 2018 Fiona costume was paired with Shrek.

This storytelling element makes the costumes more memorable.

They Use Professional Special Effects

Prosthetics are central to many of Klum’s most elaborate transformations.

Instead of relying solely on clothing, her teams use techniques that can alter the apparent shape and proportions of her face and body.

The result is closer to a film or television character transformation than a conventional party costume.

They Embrace the Unexpected

Perhaps the most important ingredient is unpredictability.

Nobody expects a supermodel to arrive as a giant worm.

That surprise factor is one reason the 2022 costume became such a widely discussed moment.

From Fashion Model to Halloween Icon

Klum’s Halloween tradition also complements her broader career in fashion and entertainment.

She has spent decades working in an industry where visual presentation matters. Halloween allows her to apply that same attention to detail in a completely different context.

Her television work has also reinforced her interest in costume and design. As a longtime host and producer associated with Project Runway, she has been closely connected with fashion and creative production. Her Emmy recognition for hosting the series further established her credentials in entertainment.

Halloween gives her a particularly unusual creative outlet because there are fewer restrictions on what she can become.

She can be beautiful, grotesque, funny, strange, recognizable, or completely unrecognizable.

What Can We Learn From Heidi Klum’s Costume Strategy?

You do not need a Hollywood-level production team to borrow the creative principles behind her costumes.

Start With a Strong Concept

The best costumes are usually based on an immediately understandable idea.

Examples include:

• A recognizable movie character
• A mythological figure
• An animal
• A horror character
• A pop-culture reference
• An intentionally absurd creature

The concept should be understandable before you worry about individual costume pieces.

Prioritize Transformation

If the goal is to recreate the spirit of a Heidi Klum-style costume, focus on changing your appearance rather than simply buying an outfit.

That could mean:

• Makeup
• Hair styling
• Prosthetic effects
• Colored contact lenses where appropriate and safe
• Face coverings
• Body silhouettes
• Character-specific movement

Even a simple costume can feel much more convincing when the person commits to becoming the character.

Use One Strong Visual Idea

A costume does not necessarily need dozens of unrelated details.

A strong central idea is often more effective.

Klum’s worm costume worked because the entire concept centered on becoming an enormous worm. Her peacock look centered on the visual illusion of a living bird. Her E.T. costume centered on becoming the movie character.

Consider the Reveal

Part of the appeal of Klum’s Halloween costumes comes from anticipation.

She has often teased elements of her costumes before the final reveal, building curiosity without showing everything.

For ordinary Halloween parties, the same principle can work on a smaller scale: keep one major transformation element hidden until the costume is complete.

Frequently Asked Questions

What is Heidi Klum’s most famous Halloween costume?

There is no official single ranking of her costumes, but her giant worm from 2022 is among her most widely recognized recent looks. Her peacock, E.T., Fiona, and Medusa transformations are also notable examples of her elaborate Halloween style.

What was Heidi Klum’s 2025 Halloween costume?

Heidi Klum dressed as Medusa for Halloween 2025, using extensive makeup and prosthetic effects. Tom Kaulitz appeared alongside her as Perseus.

What was Heidi Klum’s 2024 Halloween costume?

In 2024, Klum and Tom Kaulitz dressed as E.T. from E.T. the Extra-Terrestrial. Their costumes used extensive prosthetic work to recreate the alien characters.

What was Heidi Klum’s 2023 Halloween costume?

Klum transformed into a peacock in 2023. Nine other performers helped create the bird’s feathers and claws, turning the costume into a coordinated live performance.

What was Heidi Klum’s 2022 Halloween costume?

She dressed as a giant earthworm at her 2022 Halloween party. The unusual concept became one of her most talked-about transformations.

How long does it take to create Heidi Klum’s Halloween costumes?

The preparation varies by costume. Klum has explained that her E.T. costume involved extensive planning and a large team, while she also described the broader process as something that can require significant preparation.

Why does Heidi Klum make such elaborate Halloween costumes?

Klum treats Halloween as a creative transformation rather than simply an opportunity to wear a themed outfit. Her costumes frequently combine character design, prosthetics, makeup, costume construction, and performance.

Does Heidi Klum make her Halloween costumes herself?

Her early costumes were much more hands-on and simple, but her later transformations involve professional makeup artists, prosthetics specialists, costume experts, and other members of a creative team. Klum has specifically discussed how access to talented special-effects professionals changed her approach over the years.

Conclusion

The most memorable Heidi Klum Halloween costumes stand out because they are more than costumes. They are complete transformations built around strong concepts, detailed character work, professional effects, and an obvious willingness to experiment.

From the bizarre giant worm of 2022 to the elaborate peacock of 2023, the cinematic E.T. transformation of 2024, and the mythological Medusa of 2025, Klum has continued to expand what a celebrity Halloween costume can be.

Her Halloween legacy ultimately comes down to a simple creative principle: do not just dress up as something—become it.

That approach explains why her costumes remain a recurring part of Halloween pop culture and why each new reveal attracts so much attention.