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14 Celebrity Halloween Costumes That Are So Good, You Won't Even Recognize The Famous Person Underneath Them

Heidi Klum as a giant worm will forever haunt my mind.

Halloween is upon us, folks! And celebs have already started showing off their incredible costumes.

hailey beiber with a lace outfit and a skeleton prop

And honestly, nothing excites me more than seeing celebs go SO hard with their costumes that I have to guess who's actually wearing it. So, to celebrate spooky season, let's take a trip down memory lane and see 14 celebs who were totally unrecognizable in their costumes over the years:

1. This Hillary Clinton is actually...

hilary and bill clinton with secret service

...Katy Perry.

closeup of katy

2. This giant worm is actually...

a giant worm costume at an event

...Heidi Klum.

closeup of her

3. This Beetlejuice is actually...

beetlejuice sitting down holding a drink

...The Weeknd.

closeup of him posing at an event

4. This Mary-Kate and Ashley Olsen is actaully...

closeup of the two at an event

...Neil Patrick Harris and David Burtka.

closeup of them at an event

5. This Karl Lagerfeld is actually...

the person in custome holding a fan and wearing a grey wing

...Josh Duhamel.

closeup of him at an event

6. This Donald Trump is actually...

...Orlando Bloom.

closeup of him

7. This Pennywise is actually...

...LeBron James.

lebron on the court during his game

8. This Sally from The Nightmare Before Christmas is actually...

sally on the red carpet

...Michelle Trachtenberg.

closeup of her at an event

9. This Post Malone is actually...

someone as post with his tattoos, cigarette, and holding a bottle of bud light

...Rita Ora.

closeup of her

10. This witch is actually...

wearing a long lacy and layered dress with long messy hair

...Chloë Grace Moretz.

closeup of her at an event

11. This bloody zombie is actually...

wearing a bloodied dress with bloody makeup

...Demi Lovato.

closeup of her at the mtv awards

12. These lifesize primates are actually...

two apes

...Heidi Klum and Seal.

the two on the red carpet

13. This Frankie Stein from Monster High is actually...

his and her frankensteins

...Shenae Grimes.

closeup of her

14. And finally, this Princess Fiona is actually...

princess fiona at a party

...Colton Haynes.

closeup of him in a suit