The Marion County Humane Society is holding a Pet Fest in Pella. Dogs and cats will be available for adoption, and there will also be a pet show with local celebrity judges. Categories for both dogs and cats include best vocalist, best owner-pet look alike, best-dressed, silliest pet trick, biggest and smallest pet. There will also be other activities, including a bake sale and silent auction. The event will be at Caldwell Park in Pella, on Saturday from 9 a.m. to 2 p.m.