"Harlow looks exactly like me, but she has Joel's personality. She's very gentle, very delicate and she thinks everything through before she does it. Sparrow looks like Joel but his personality is like me. He's just wild and crazy, and you always have to watch him, you can't take your eyes off him for a second." NICOLE RICHIE's two kids with fiance JOEL MADDEN are fast developing similar traits to their parents.