Donald Trump Jr. wasn't too busy on the campaign trail to miss Halloween with his kids! His three youngest went as Captain America, Minnie Mouse and a police officer.
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MARLOWE & MAJOR MARTINO
Eva Amurri Martino's kids went under the sea to celebrate Halloween as Ariel and Flounder.
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VIVIANNE & ERIC DECKER
The whole Decker family took a trip to Neverland for Halloween this year.
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Justin Timberlake managed to convince his whole family to dress up as Trolls for Halloween — and they couldn't be cuter!
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Gisele Bundchen's son wanted to be Mario, and she won the Best Mom Ever award by stepping up to the plate as Luigi!
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NANCY & ADALAIDE KELLEY
For their last Halloween as a family of four, Katherine Heigl and Josh Kelley dressed up as a clan of vampires — and an unlucky beast!
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CAMDEN & BROOKLYN LACHEY
It's been a few years since Frozen came out in theaters, but that doesn't mean that the hype has died down! The Lachey family clearly still loves the movie, as evidenced by their Anna, Elsa, Olaf and Kristof costumes.
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EGYPT & GENESIS DEAN
Alicia Keys's little guys didn't need magic to create their epic Harry Potter and Batman costumes.
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D'LILA & JESSIE COMBS
P.Diddy was in the Halloween spirit! He dressed as the Mickey to his daughters' Minnies for the day.
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GIA & DOMINIC LOPEZ
The Lopez family did some father-son, mother-daughter matching for their Wild West themed costumes!
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ALIJAH & HANK BASKETT
The Baskett family went for video game-inspired characters — plus a little dinosaur — for a night of trick-or-treating.
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HARPER & HOLT SMITH
Tiffani Thiessen's kids went full-on Power Ranger (with mom and dad!).
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For her first Halloween, Jana Kramer's little girl is embraced the scary side of things — and got a little freaked out herself by her monster costume!
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CARMEN, RAFAEL & LEONARDO BALDWIN
What an Incredible costume! Alec and Hilaria Baldwin dressed up as everyone's favorite superhero family with their three little ones.
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HARPER & GIDEON BURTKA-HARRIS
The 6-year-old twins continued their family's tradition of dominating Halloween with a Hollywood theme that included Marilyn Monroe, Groucho Marx, Charlie Chaplin and James Dean.
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EVELYN & MABEL WILLIS
The kitty, 2, and the little witch, 4, daughters of Emma Heming and Bruce Willis, had a blast before trick-or-treating.
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KAI & SASHA SCHREIBER
Kai, 7, and Alexander, 9, took the scary Halloween route with mom Naomi Watts.
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KIYAN CARMELO ANTHONY
The 9-year-old offspring of La La and Carmelo Anthony stood at attention as a toy soldier.
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JAMES KNIGHT NEWMAN
Jaime King's 3-year-old proved he's a Nightmare Before Christmas superfan with a Jack Skellington costume.
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EMME & MAX MUÑIZ
Jennifer Lopez and Marc Anthony's 8-year-old twins went candy hunting as a cat and Bowser from Super Mario Bros.
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PENELOPE, REIGN & MASON DISICK
Mom Kourtney Kardashian led Penelope, 4, Reign, 2, and Mason, 6, in a Power Rangers squad.