Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436am)
Paris Hilton
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
I believe Paris is a unicorn. That statement is actually true on a couple of levels.
Cindy Crawford, Rande Gerber, Kaia Gerber
Mandatory Credit: Photo by Broadimage/REX/Shutterstock (9946042al)
Cindy Crawford, Rande Gerber, Kaia Gerber
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
They always do it up big. Cindy is Debbie Harry, Rande is Bowie, and Kaia is...Joan Jett? I appreciate any Halloween costume where you can wear pants.
Nina Dobrev
Mandatory Credit: Photo by Broadimage/REX/Shutterstock (9946042aw)
Nina Dobrev
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
I did not get this AT ALL until I went to Nina's Instgram. She's a star being born. She's A Star Is Born. That's actually really good, except for how she probably has to explain it to everyone.
Lily-Rose Depp
Mandatory Credit: Photo by Lexie Moreland/WWD/REX/Shutterstock (9946046l)
Lily-Rose Depp
V Magazine & Chanel Halloween Party, New York, USA - 26 Oct 2018
This photo was snapped at a V Magazine & Chanel Halloween Party, which is why it looks like a fashion magazine editorial. (She's their cover model this month and here, I guess, their ringmaster.)
Michael Rosenbaum
Mandatory Credit: Photo by Broadimage/REX/Shutterstock (9946048ay)
Michael Rosenbaum
DDJF Costume for a Cause Event, Los Angeles, USA - 26 Oct 2018
Lex Luther colonizes the moon!
Paris Jackson
Mandatory Credit: Photo by Broadimage/REX/Shutterstock (9946048bb)
Paris Jackson
DDJF Costume for a Cause Event, Los Angeles, USA - 26 Oct 2018
Okay, so this was legitimately a Halloween party, but also, let's get real: Paris dresses like this all the time.
Olivia Munn
Mandatory Credit: Photo by RSMX/starmaxinc.com/REX/Shutterstock (9946295g)
Olivia Munn
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436ad)
Lisa Rinna and Harry Hamlin
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
These two have a history of questionable taste as far as Halloween costumes go, so it's a relief to see them go for your basic Edie Sedgwick/Andy Warhol look.
Ryan Seacrest
Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436au)
Ryan Seacrest
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
Congrats, Heather! Now you and Seacrest have something in common: You have both been Karl Lagerfeld for Halloween.
Zoe Kravitz
Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436ax)
Zoe Kravitz
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
Zoe is a vampire who just woke up (because early evening is the vampire's morning), and this is pretty cute and also probably comfy.
Cara Santana and Jesse Metcalfe
Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436k)
Cara Santana and Jesse Metcalfe
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
I'm definitely missing whatever is happening here.
Karolina Kurkova
Mandatory Credit: Photo by RHTY/starmaxinc.com/REX/Shutterstock (9946436u)
Karolina Kurkova
Casamigos Halloween Party, Los Angeles, USA - 26 Oct 2018
I suspect she's just a generic Lady in a Top Hat (maybe she's Cara Delevingne at Princess Eugenie's wedding?) but regardless, she looks great.
Cody Simpson
Mandatory Credit: Photo by Madison McGaw/BFA/REX/Shutterstock (9946688s)
Cody Simpson
Halloween on Top event at The Top of the Standard, New York, USA - 27 Oct 2018
It's not officially Halloween unless someone is the Joker.
Maia Shibutani, Alex Shibutani
Mandatory Credit: Photo by Owen Kolasinski/BFA/REX/Shutterstock (9946833cf)
Maia Shibutani, Alex Shibutani
Just Jared's 7th Annual Halloween Party, Los Angeles, California, USA - 27 Oct 2018
Behold! Two cute people who decided to go to this last minute!
Chris Colfer
Mandatory Credit: Photo by Owen Kolasinski/BFA/REX/Shutterstock (9946833cj)
Chris Colfer
Just Jared's 7th Annual Halloween Party, Los Angeles, California, USA - 27 Oct 2018
The story I've invented is that Chris bought those boots like five years ago and every year figures out a costume that they work with.
Laurie Hernandez
Mandatory Credit: Photo by MediaPunch/REX/Shutterstock (9946950cz)
Laurie Hernandez
Just Jared's 7th Annual Halloween Party, Los Angeles, California, USA - 27 Oct 2018
A Greek goddess? That's a good classic costume you can make out of a white dress you may already have.
Bethany Joy Lenz
Mandatory Credit: Photo by MediaPunch/REX/Shutterstock (9946950eb)
Bethany Joy Lenz
Just Jared's 7th Annual Halloween Party, Los Angeles, California, USA - 27 Oct 2018
This seems like a missed opportunity to stick a tiny model ship in your hair.
Jenna Ortega
Mandatory Credit: Photo by MediaPunch/REX/Shutterstock (9946950fe)
Jenna Ortega
Just Jared's 7th Annual Halloween Party, Los Angeles, California, USA - 27 Oct 2018
This is a GREAT Ariana Grande costume.
Jessica Seinfeld and Jerry Seinfeld
Mandatory Credit: Photo by Variety/REX/Shutterstock (9946954b)
Jessica Seinfeld and Jerry Seinfeld
GOOD+ Foundation's 3rd Annual Halloween Bash, Arrivals, Los Angeles, USA - 28 Oct 2018
Sure! Sure. (I feel like Jerry's costume is too heavily weighted to Granny and not enough Wolf, but I doubt he's taking notes from me.)
Sarah Michelle Gellar and Michelle Trachtenberg
Mandatory Credit: Photo by Variety/REX/Shutterstock (9946955a)
Sarah Michelle Gellar and Michelle Trachtenberg
GOOD+ Foundation's 3rd Annual Halloween Bash, Arrivals, Los Angeles, USA - 28 Oct 2018
Buffy reunion! SMG is Harley Quinn, and Halloween enthusiast Michelle Trachtenberg is...an evil unicorn?
Rita Ora
Mandatory Credit: Photo by James Shaw/REX/Shutterstock (9945723bh)
Rita Ora
KISS Haunted House Party, London, UK - 26 Oct 2018
OMG. Rita Ora is in costume as Post Malone and this is REALLY GOOD. Face tats and all!
Angela Sarafyan
Just Jared’s 7th Annual Halloween Party Featuring: Angela Sarafyan, Guest
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
I think she's just...Generic Person in Mask? You got me. (Celebs, if your costume isn't immediately recognizable, I need you to clarify on your Instagrams.)
Drake Bell
Just Jared’s 7th Annual Halloween Party Featuring: Drake Bell
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
A round of applause for this EXCELLENT Dr Frank-N-Furter costume.
Sarah Hyland
Just Jared’s 7th Annual Halloween Party Featuring: Sarah Hyland
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
This costume is also really good. Who doesn't love tacos?
Sarah Hyland
Just Jared’s 7th Annual Halloween Party Featuring: Sarah Hyland
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
With the Taco Bell Fire Sauce packet underneath. You're fun, Sarah Hyland.
Victoria Justice
Just Jared’s 7th Annual Halloween Party Featuring: Victoria Justice
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Sexy Ouija Board? Sure. (I do like the idea of everyone slowly drifting into Sexy Furniture. Like, this year, maybe I'll be a Sexy Occasional Table.)
Ireland Baldwin
Just Jared’s 7th Annual Halloween Party Featuring: Ireland Baldwin
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
This is like...mostly Carrie?
Ariel Winter
Just Jared’s 7th Annual Halloween Party Featuring: Ariel Winter
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
It amuses me that Ariel Winter looks way better as Michelle Pfieffer in Scarface than she looks out of costume half the time. Dress like iconic Michelle Pfieffer costumes all the time, Ariel!
Kelly Osbourne
Just Jared’s 7th Annual Halloween Party Featuring: Kelly Osbourne
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
....Grace Coddington? I don't know. (I was Anna Wintour for Halloween one year, and she's much more immediately recognizable. I also carried a copy of Vogue with rude Post-It notes all over it.)
Adam Lambert
Just Jared’s 7th Annual Halloween Party Featuring: Adam Lambert
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Don't pretend you don't wear this all the time, Adam!!
Jaime King
Just Jared’s 7th Annual Halloween Party Featuring: Jamie King
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Jaime says she's "Saint Joan of Arc" in this, and it feels v. inspired by this year's past Met Gala.
Ashley Greene
Just Jared’s 7th Annual Halloween Party Featuring: Ashley Greene
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Is Ashley dressed as Disney's animated Robin Hood? Because that means this is the most I've EVER liked Ashley Greene.
Taissa Farmiga
Just Jared’s 7th Annual Halloween Party Featuring: Taissa Farmiga
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Is she a gumball machine?
Janina Gavankar
Just Jared’s 7th Annual Halloween Party Featuring: Janina Gavankar
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
I will definitely need some help on this. (I KNOW, I'm sure it's obvious. Halloween always reveals the surprising holes in my pop culture knowledge.)
Rumer Willis, Scout Willis
Just Jared’s 7th Annual Halloween Party Featuring: Rumer Willis, Scout Willis
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
They actually look kinda great in these outfits.
Leona Lewis
Just Jared’s 7th Annual Halloween Party Featuring: Leona Lewis
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
It's ALSO not Halloween unless someone dresses as a belly dancer.
Bailee Madison
Just Jared’s 7th Annual Halloween Party Featuring: Bailee Madison
Where: Los Angeles, California, United States
When: 27 Oct 2018
Credit: FayesVision/WENN.com
Ah, Grease. A classic!
Avril Lavigne
, Los Angeles, CA - 20181027 Celebrity guests arrive at the Just Jared Halloween Party at The Darkroom on Melrose. -PICTURED: Avril Lavigne
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Honestly? I'm just glad Avril is out and about -- sexy pirate wench is a classic.