Halloween in Hollywood is a family affair!
Jessica Simpson to Zoe Saldana, to the perennial Halloween-ready Burtka-Harris family, celebrities and their kids took the costume-loaded holiday by storm.
RELATED: Jessica Alba, Kim Kardashian, Channing Tatum & More — See Hollywood's Best Halloween Costumes of 2015!
Check out the gallery above to see the best celebrity kids' Halloween costumes of 2015!
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The whole Lachey family, including dad Nick, mom Vanessa, and kids Camden and Brooklyn spent Halloween decked out in
Toy Story gear.
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Jenni "JWoww" Farley and Roger Mathews were joined by soon-to-be big sister Meilani Mathews for an all-Minions Halloween look.
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Maxwell Drew Johnson gets cat-like in this puckered-up pose for mom, Jessica Simpson.
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Jimmy Fallon's youngest daughter, Frankie, celebrated Halloween as Farrah Fawcett. The happy dad captioned this sweet pic with a simple: "Happy Halloween!!"
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Fallon's older daughter, Winnie, 2, went in a throwback Margot Tenenbaum costume, inspired by the film
The Royal Tenenbaums.
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Fergie (who dressed up as Batgirl), and Josh Duhamel (a clown), were joined by their son, Axl, for this sweet family pic.
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Gisele Bundchen shared this adorable snapshot of her two kids with Tom Brady, who went as The Hulk and Nemo.
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Zoe Saldana's twins with husband Marco Perego got into the classic Halloween spirit with a couple spooky masks.
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Topo Gigio, Shakira, Gerard Piqué, and sons Milan and Sasha Piqué Mebarak joined in on the Hollywood fun in this family photo.
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Talk about #SquadGoals!
Alyssa Milano and husband Dave Bugliari, along with kids Milo and Elizabella showed up for Halloween in their Despicable Me gear.
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Kourtney Kardashian posted this photo of herself, along with kids Mason, Penelope, and Reign, and simply captioned it, "Superheroes."
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Never one to be outdone,
Neil Patrick Harris shared his annual family Halloween photo. This one, is from "A long time ago in a Halloween far, far away," he wrote on Instagram.
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Ben Haggerty, also known as Macklemore, shared this shot of his first child, daughter Sloane, dressed as a strawberry.
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"Elsa & Anna in the house! #HalloweenVibes," wrote
Kim Kardashian about this pic of daughter North West and her niece, Penelope Disick.
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Gwyneth Paltrow shared a rare photo of daughter Apple Martin, made up in their spookiest skeleton looks.
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"Happy Halloween! Love, Tink, elephant munchkin, some strange bunny, and…well…Alec in hiding," wrote
Hilaria Baldwin about this family Halloween photo with husband Alec Baldwin and kids Carmen and Rafael.
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Pink, Carey Hart, and daughter Willow perfected their E.T. ensemble in this family portrait.
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No conventional Halloween costume for Viola Davis' daughter. "So…..the Elsa costume? Didn't work for her. The Pirate? A no go," writer Davis about this photo of her daughter, Genesis Tennon. "So she finally said," I just want to be YOU mommy"! So… uhh….this is ME."
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Jessica Alba's younger daughter, Haven dons her best princess gown in this photo where she's seen trick-or-treating with a friend.
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"Happy Halloween from the Cibrians!," LeAnn Rimes writes about this Instagram family photo. "Little @theweightsaint little @janefonda little #trafalgarlaw little #scaryclown #halloween #halloweencostume #trickortreat"