The pregnant singer got involved with the spooky celebrations at home, and was joined by fiancé George Kay and three of her kids, Molly, Heidi and Maxwell.
Kerry, who is pregnant with her fifth child, transformed into a clown by wearing white face paint with a big red nose. She teamed her outfit with a big, curly rainbow wig and a spotted red suit.
The 33-year-old then posed for a photo with George, who came dressed as a ghost. Captioning the snap on Instagram, she joked: "We make a lovely couple xxx."
Kerry's other daughter Lily-Sue was missing from the snaps, but it looks like the family made the most of their night out trick or treating.
She later admitted: "Halloween is the one time of year I don't have to pretend I'm normal."
Taking to Twitter at the end of the night, Kerry said: "Well that's it folks, bedtime for the Katona clan... Had a scary fun night, time for sleep! Mind the bed bugs don't bite. Xxxxx."
Kerry certainly hasn't been letting her pregnancy slow her down and has a jam-pakced schedule right up until the end of the year.
Last week, the 'Whole Again' singer was busy working on the Big Reunion Christmas charity single, and she'll also be on the road next month for the Big Reunion Christmas party tour.
As if that wasn't hectic enough, Kerry is also managing to squeeze in rehearsals as she gears up to play Marilyn Monroe in Norma Jeane: The Musical next year!
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