Kristin Cavallari Designs Shoe for Charity

Kristin Cavallari may have played a mean girl during her season on The Hills, but she seems fairly down-to-earth when she's off-set. The California blond, who wore an edgy spike-embellished dress by The Blonds to the premiere of Salt earlier this week, has just announced she will be creating a shoe to benefit the children's charity OneKid OneWorld.Cavallari told PeopleStyleWatch, "I'm designing a shoe for Shoe Dazzle right now, which is like a one time, one deal show which a portion of the proceeds [will] go to my charity 'OneKid OneWorld'. I'm excited about that because I want to have my own shoe line so it'll be like a good first shoe to get my feet wet with."