Heidi Klum's Halloween costume will take 10 hours to assemble

Heidi Klum

Heidi Klum has revealed her Halloween costume this year will take "10 hours" to put on.

The model and TV personality has become known for going all out with her fancy dress for her annual Halloween party, with her previous costumes including Hindu goddess Kali, Cleopatra, Jessica Rabbit, and the werewolf from Michael Jackson's Thriller video.

Last year, she attended with now-husband Tom Kaulitz in full prosthetics as ogres Princess Fiona and Shrek from the hit animated franchise, and Heidi is going above and beyond for the upcoming 20th anniversary of her Halloween party.

"I'm gonna have a hard time walking, and it'll take a really long time. It will be a couples' costume!" she told People, before adding that it will take "10 hours" to put on.

However, the Tokio Hotel musician's outfit will be much easier this time around, after he found the Shrek prosthetics overwhelming last year.

"His is gonna be easier (than mine this year) because last year I felt so bad for him," Heidi explained. "He had never done this before, and it was harder for him than for me because he had the big belly and the face. I'm used to it, but he was like, 'Oh my god, I'm gonna die! It's so hot!'"

Despite freaking out, the 30-year-old rocker took it all in his stride.

"He loved it. He's just as nuts as me, but I had to come up with something a little easier for him to wear this time around," the former Project Runway star shared.

And the 46-year-old also revealed she will be doing a live performance in the window of Amazon's New York store, so fans will be able to see her getting ready for the Halloween bash.

"People walking by can see, shop, have lunch and come back, and I'll still be sitting there in that window getting ready," she laughed.

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