Credit: Charley Gallay/

Happy fourth birthday, Harlow Madden

Nicole Richie's mini-me daughter turns four Wednesday. Richie, 30, has named two fashion lines after her adorable tot: House of Harlow and Winter Kate.

She told Harper's Bazaar in 2008: "I owe [my] baby my life." Her father Lionel Richie agreed, telling the magazine: "Motherhood has given her all the keys to understanding how her mother and I were trying to raise her. Now it has come full circle."