Kate Hudson & Kate Perry
The Almost Famous star hosts "Hillary Clinton" during her annual bash, which included the yummy Kate Hudson Absolut Elyx Halloween cocktail.
Teyana Taylor
"That would u live for me love... cause that die for me s--t too easy ?? #TheShumperts," the model wrote on Instagram.
Jordan Rodgers & JoJo Fletcher
"When you are born in the '30s you have no concept of the term 'pace yourself'...past our bedtime #photogenic," the Bachelorette star wrote alongside Becca Tilley.
JWoww & Roger Mathews
"#Halloween got us like," the Jersey Shore star wrote while donning items from Fashion Nova.
Chrissy Teigen
"Please help I can't stop," the proud mom wrote as Luna worked her Minnie Mouse costume.
Presley Gerber, Kaia Gerber, Cindy Crawford, Rande Gerber
This punk rock family went all out for the Casamigos Halloween Party!
Tamar Braxton
"He's the peanut to my jelly" the reality star wrote on Instagram.
Ryan Lochte & Kayla Rae Reid
It's the Mad Hatter and Alice in Wonderland!
Alicia Keys
The Voice coach celebrates the holiday at Bacardi x Kenzo Digital's "We Are The Night" Halloween party.
Ariel Winter
The Modern Family star shows off her bunny costume from Trashy Lingerie.
Lisa Rinna & Harry Hamlin
"I got you Babe. Dressed by @bobmackie in original Sonny and Cher," the Real Housewives of Beverly Hills star shared on Instagram. "@Casamigos Halloween Party. #SonnyAndCher."
Meghan King Edmonds
"Tonight we party-hopped and photoboothed!" the pregnant Real Housewives of Orange County star shared. "#lyndonshalloweenparty #barretsretirementparty #halloweenmeetshockey."
Bette Midler
The beloved Hocus Pocus star recreates an unforgettable look at the NYRP Hulaween Party in New York City.
Tia Mowry
The Sister, Sister star celebrates the holidays with her siblings Tahj Mowry and Tamera Mowry-Housley.
Hilary Duff & Jason Walsh
The Younger actress and her boyfriend attempt a Thanksgiving theme at Mike Meldman's Casamigos Halloween Party.
Carmen Electra
The Baywatch star hosts Throwback Thursdays Halloween edition at Centrale at Foxwoods Resort Casino.
Katy Perry & Orlando Bloom
With the help of prosthetics, wigs, and even a faux-secret service detail, the A-list couple convincingly transform themselves into Hillary Clinton and a Donald Trump caricature.
Jessica Alba
Absolutely Fabulous!
Stacy Keibler, Emmanuelle Chriqui & Jenna Dewan-Tatum
We're partial to the unicorn ensemble.
Katy Perry
The singer Instagrammed this photo of herself getting in character, writing, Having a little pre party before I take office #IMWITHME Cheers to @svedkavodka #howtosvedka @hillaryclinton"
Orlando Bloom
The actor dresses up as a comical version of Hillary Clinton's opponent.
Kendall Jenner
With help from Lyft, the model and Keeping Up With the Kardashians star traveled to Kate Hudson's Halloween bash.
Aubrey Anderson-Emmons
The Modern Family star enjoys Halloween games and spooky fun at the Ronald McDonald House Charities (RMHC) Halloween Extravaganza #KeepingFamiliesClose in Los Angeles.
Tom Sandoval, Ariana Madix & Scheana Shay
Best dressed at Freixenet's 1st annual "Black Magic" Halloween party easily goes to these Vanderpump Rules stars.