2019
While attending Paris Hilton's festivities the week before Halloween, it seemed the model took inspiration from the "fireworks" that new hubby Tom Kaulitz makes her feel.
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.
2016
Instead of transforming into someone else, Klum opted to clone herself five times with the help of prosthetics and some fabulous wigs.
2014
"They said, 'Are you really in there Mama?'" Klum told E! News, talking about her children's reaction to her metamorphosis into a butterfly.
2013
As for her kids' reactions to this elderly get-up, Klum told E! News, "The one time that I [looked] like me but older, they were scared."
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 text book. Fun fact: This year, Klum held two parties. This costume debuted on Oct. 29 in Las Vegas.
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.
2008
No, this isn't the Genie from Aladdin. It's actually the Hindu goddess of death and time, Kali.
2006
She's the apple of our eye in this costume inspired by the biblical tale of Eve and the forbidden fruit.
2003
Gladiator goddess or sci-fi dream? Either way, this vivacious look goes down as one of her best.
2002
For dressing as a cartoon figure, Klum makes a striking match for Betty Boop.