Nicole Richie held her daughter Harlow's hand and carried her son Sparrow as they left a playground in LA yesterday. The trio were off for a playdate without dad Joel Madden, who has been touring with Good Charlotte. He's away from his wife and kids on Valentine's Day, but he did tweet a sweet holiday message to his loved ones. Nicole has been busy herself balancing play dates with her little ballerina and superhero while promoting her new Winter Kate and House of Harlow collections. She skipped out on New York Fashion Week to spend the weekend on the West Coast, but she'll be back to the Big Apple to co-host The View tomorrow morning.