Celebrity kids trick-or-treating: Halloween 2013

Here's Hollywood power couple Ben Affleck and Jennifer Garner out trick-or-treating with their three adorable kids, Violet (dressed as a scaaaary mummy!), Seraphina (Madeline) and Samuel (a little horse). SO ADORABLE.

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Pregnant singer Gwen Stefani and her hubby, Gavin Rossdale, took their sons, Kingston and Zuma, trick-or-treating last night. Gwen dressed up as a gorgeous princess, and Kingston was her sidekick alien. Little Zuma (not pictured here) donned an Iron Man costume. CUTE!

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Hilarious! Here are The Heat costars/BFFs Sandra Bullock and Melissa McCarthy taking Sandra's son, Louis, for an early trick-or-treating adventure in his skeleton costume. Sandra and Melissa looked too funny in their matching bearded fishermen costumes! 

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Wow! Super-creative Alyson Hannigan didn't disappoint last night. The How I Met Your Mother Star, her hubby, actor Alexis Denisof, and their two daughters, Satyana and Keeva, went trick-or-treating in "Lucky Charms" family-themed Halloween costumes. How cute are they?!

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Sarah Jessica Parker and Matthew Broderick's twin daughters, Loretta and Tabitha, 4, show off their sweet Halloween costumes trick-or-treating on the streets of New York City. Awwww!

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Here's actress Molly Sims out trick-or-treating as Annie with her hubby and their son, cutie-pie Brooks.

And here's supermodel Alessandra Ambrosio in her kitty-cat mask taking her kids trick-or-treating. Her son, Noah, looked so sweet in his polar bear costume. Her daughter, Anja, who's not pictured here, went as a little princess. Sweet!

Halloween in Hollywood: Celebrities we love>
The stars were out in full force during the days leading up to Halloween 2013, haunting the pumpkin patch and showing off fabulous Halloween costumes.