All 21 of Heidi Klum's iconic Halloween costumes, ranked

At this point, it's been proven over and over again that you should generally stay away from making someone's culture your Halloween costume, a lesson that Klum learned in 2008.

Dressing up as Cleopatra, though it's extremely common, also falls into some morally gray territory, with many calling it cultural appropriation. Besides that, it's not a particularly interesting costume, apart from the giant headpiece, so perhaps it's for the best she canceled the party.

Klum actually resembles a rat more than cat. Plus, a cat is the most basic Halloween costume of all time — we expect more from a Halloween queen like Klum.

There's nothing particularly notable about this couples costume, which is why it earns this low spot. We also don't really know why Seal is wearing a sunflower lapel pin or yellow gloves.

If she had made everyone wear a more interesting costume this would've been higher, but as it stands, the nude bodysuit and thigh-high boots aren't bold enough for a higher spot.

This costume is simple, but effective. The black wig and red lip are a big enough departure from Klum's ultra-recognizable look that even if she hadn't worn the leather ensemble, she still would've been incognito.

Yes, she really leveled up in the commitment to her costumes in 2003, but we're not quite sure what she's supposed to be. She donned a golden catsuit, had long golden braids, metallic golden boots, and a gold grill, which was surely time-consuming, but we're not sure it was really worth the effort.

Again, we're not totally sure what Klum is supposed to be, but the giant red wig is iconic, as are the random bones strewn about.

Once again, Klum wore a giant wig. She paired her dress with thigh-high boots, vampire fangs, and wings.

Klum mainly relies on full-body prosthetics now, but her 2002 Betty Boop costume proves that with the right wig, make-up, and red dress (and a potential butt prosthetic), you can still totally transform yourself.

At just her second Halloween party, Klum was showing us that her title of Halloween queen was not to be questioned. She turned us all into peeping toms when she rode into her party as the British legend Lady Godiva.

Klum looked like she stepped right out of "Bodies: The Exhibition" for her 2011 party. It looks like it took hours in the makeup chair to paint her entire head red.

A butterfly is also a basic costume, but unlike when she dressed up as a cat, Klum took it to a whole new level with these gigantic wings and the mask with butterfly eyes.

There's truly so much happening here, we don't even know where to start. The cut-open stomach with guts spilling out? The wires coming out of her nipples? The exposed brain?

Sure, this took time, planning, and the effort of very talented artists, but since we can't quite tell what she is, the 2019 costume places eighth.

Most people would just dress as Adam and Eve, but Seal and Klum aren't most people. Dressing up as both a giant apple and the temptress serpent is a creative spin, and then, of course, Seal being Eve makes sense, as it's she who gets tempted.

The color-blocked tights and two separate boots (one green snakeskin, one red leather) are a nice touch.

The prosthetic work here is truly impressive and looks real, from the wrinkly neck to the veiny legs. It might not be the most glamorous or sexy costume, but she really took an easy costume to a whole new level.

This costume is a mix between a giant robot and a superhero, and we're into it. Her entire body was covered in bright purple face-paint, and she even learned to walk in stilts to attend the party. That's Vin Diesel-level commitment.

These two wouldn't have been out of place on the set of "Planet of the Apes" — these are Hollywood-grade prosthetics and costumes.

While animals may be low-hanging fruit in terms of Halloween costumes, monkeys are frequently done, but rarely this well. We commend Klum, Seal, and their team of artists who put this look together.

In what's basically her Betty Boop costume leveled-up, Klum looks exactly like the animated character from "Who Framed Roger Rabbit," voiced by Kathleen Turner. The costume should just be retired now — no one can top this.

You can see how time-consuming this process was on her Instagram — basically every feature is prosthetic, from nose to feet.

Klum nailed every detail of this costume, from the cropped pants and white socks to the letterman jacket and werewolf mask.

Watch the video now to really get in the Halloween spirit.