After 23 years of Klum's famous Halloween party, the supermodel shares behind-the-scenes details on what it takes to get all dressed up for the big night ...

Heidi Klum stole the show at her 23rd annual Halloween extravaganza with her interpretation of ET from Steven Spielberg’s 1982 sci-fi classic. The Queen of Halloween never fails to hit the ...

Heidi Klum and Seal showed up as apes for another one of Klum's Halloween parties in 2011. For the other 2011 Halloween bash, she and Seal showed up in intricate ape costumes. Cleopatra (2012) ...

@heidi klum chats with us about her costume this Halloween. Hint: it’s going to be out of this world 🛸 😉 Meanwhile, ... Klum dressed up as an old 90-year-old lady.

It's a pity that Klum was just a few years early for M. Night Shyamalan's "Old" with her 2013 costume. Heidi Klum attends her 14th annual Halloween party on October 31, 2013. Mike Coppola/Getty ...

Klum’s 2016 costume didn’t involve a dramatic transformation for once—rather, she enlisted a troupe of five people to become her lookalike entourage. Right down to identical hair.

Heidi Klum and Janelle Monáe opted for out-of-this-world Halloween costumes this year — both choosing to dress as the stubby alien E.T. for their parties on opposite coasts.

Mike Marino, who made Heidi Klum's Halloween costume, gives us behind-the-scenes details about how it came to be. “Everything was hard, I swear,” prosthetics designer Mike Marino tells TODAY.com.