Celebs try their hand at Halloween, knock it out of the park

Actress Tiffani Thiessen attends the First-Ever GOOD+ Foundation Halloween Bash hosted Jessica Seinfeld at Sunset Gower Studios on October 30, 2016 in Hollywood, California.

Things that go bump in the night don't scare away celebrities as the clock ticks closer to the witching hour.

And while they are used to dressing costume and layering on makeup, they can let their hair down for Halloween.

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Many took too their social media channels to show their haunted happenings.