In Heidi Klum's life, one day you're a stunning 5-foot-9 model, the next day you're kinda terrifying.
Or, at least, that will be the case this Oct. 31 when the Project Runway host says "Auf wiedershen!" to sexy Halloween costumes at her annual bash.
"I’m hard at work already," Klum confirmed during an August 6 appearance on The Tonight Show Starring Jimmy Fallon. And, yes, she expects her latest offering to be, uh, killer.
"I’m gonna be extra ugly and super scary," she teased. "Let’s not ruin it. We have exactly 86 days, but who's counting?"
Though she couldn't stop herself from serving up just one more teeny hint, sharing a 3D mold of her face to Instagram Oct. 1, writing, "This is just the beginning."
The 52-year-old also tagged prosthetic makeup designer Mike Marino, just one of the pros she's teamed with to ensure she continues to reign as spooky season's biggest star.
Those wanting to give Klum a fright need only to reminder her of the look she treated fans to at her first Halloween bash back in 2000.
"I was like, 'I’m Heidi. I’m going to do a Heidi-themed dirndl-type thing in patent leather,'" she explained to host Jimmy Fallon. "But I had to do my own hair and makeup. I didn’t know anyone at the time who does special effects makeup."
As a result, she acknowledged, "This is boring."
But she definitely didn't phone it in last year when she and Tokio Hotel guitarist husband Tom Kaulitz turned up dressed as the titular character from the 1982 classic E.T. the Extra-Terrestrial.
"I loved being E.T. so much," said Klum, though, she admitted, "It was so heavy holding that head on my head because it goes from the back to the front. I thought my neck was going to snap off."
And heavy is the head that holds the queen of Halloween crown.
"There goes a lot into it because I wanted to be so spectacular that this is not something I can just throw together overnight," she explained to People of the intensive process. "It takes a long time. It takes a lot of planning."
And now that she has fans waiting for the big reveal, she's pulling out all the tricks. "I don't want to let anyone down," she added, "so I'm always giving everything."
Before we see what she scares up this year, we're treating you to a look back at all her old costumes. Consider this the proof that she's been slaying for more than two decades.
2024
Heidi Klum and her husband Tom Kaulitz channeled E.T. from the 1982 movie E.T. the Extra-Terrestrial. "I loved being E.T. so much," she shared on The Tonight Show Starring Jimmy Fallon in August 2025. However, she admitted, “It was so heavy holding that head on my head because it goes from the back to the front. I thought my neck was going to snap off.”
2023
Heidi was proud as a peacock on the red carpet of her annual party, enlisting nine people to dress as her beautiful tail feathers and claws.
2022
Happy Halloworm from Heidi! While hosting her 21st annual Halloween party presented by Now Screaming X Prime Video and Baileys Irish Cream Liqueur, the America's Got Talent judge debuted her worm costume.
2022
After enjoying a night at Sake No Hana, Heidi changed into a nude sheer bedazzled jumpsuit.
2020
"Halloween is different this year," the reality TV star wrote on Instagram amid the coronavirus pandemic, "but that shouldn't stop us from getting creative at home."
2020
Heidi channeled a creepy mummy for her Halloween short video. It marked one of her many spooky looks in the five-minute clip.
2020
Heidi blended into her walls with this clever costume in 2020.
2020
Heidi, are you there? The model was hard to spot, as she perfectly matched the blue and black-streaked bedsheets.
2019
The star's costume was truly out of this world when she turned herself into a gory alien.
2018
The supermodel transformed into everyone's favorite green princess, Fiona, from Shrek. An idea she'd been dreaming about for awhile, "I just never found a crazy enough person that wants to do Shrek with me," she told People. Enter: husband Tom Kaulitz.
2017
The America's Got Talent judge had a hair-raising good time dressed up as the werewolf from Michael Jackson's "Thriller" music video. "I wanted to do the 'Thriller' dance," she explained.
2016
Instead of channeling someone else for the spooky season, the fashion expert opted to clone herself five times with the help of prosthetics and some fabulous wigs.
2015
Heidi who? The former Project Runway host answered only to Jessica Rabbit.
2014
"They said, 'Are you really in there Mama?'" she told E! News about her kids' reaction to her incredible metamorphosis into a butterfly.
2013
When describing her kids' responses to this elderly get-up, the star told E! News, "The one time that I [looked] like me but older, they were scared."
2012
Heidi gave Elizabeth Taylor a run for her money with this chic Cleopatra costume.
2011
Klum's seen here with ex-husband Seal at a time when they were presumably quite a bit more bananas about one another.
2011
The former Victoria's Secret Angel looked like she hopped right out of an anatomy textbook. She hosted two parties that year, debuting this look on Oct. 29 in Las Vegas.
2010
The model is tall, but not that tall. Heidi wore stilts to make this robot monstrosity more menacing.
2009
Little known fact about crows: a group of them is called a murder. Perhaps that's why the model chose the bird for her haunting costume. Distressed to discover the step-and-repeat was black, "Now I work on the background, too," she told People. "Since then, I do the step-and-repeat, the carpet, everything."
2008
Heidi's costume as the Hindu goddess of death and time, Kali, has since divided the internet.
2007
Heidi's ferocious feline doesn't hold a creepy candle to the CGI in Cats.
2006
She's the apple of our eye in this costume, which was inspired by the biblical tale of Eve and the forbidden fruit.
2005
Eat your heart out—literally!
2004
Not all witches wear black, you know? In fact, this witch had a lacy costume that included a fake skeleton she got at a medical supply store.
2003
Gladiator goddess or sci-fi dream? Either way, this vivacious look goes down as one of her best.
2002
The former Victoria's Secret model was red hot, as she channeled the iconic Betty Boop.
2001
In her second year hosting, the star went full Lady Godiva—horse and all!
2000
While the model's looks have become a lot more elaborate, for her very first party she was just Heidi (as in the character from Johanna Spyri’s German novels), choosing to dress up in a dirndl "but not a tradtional dirndl," she told People. "And in those days I still did my hair and makeup by myself."