VIDEO : Nicole Richie Sends Her Son, Sparrow, a Cute Birthday Message on Instagram

Nicole Richie took to Instagram on Wednesday to wish her little boy, Sparrow Madden, a happy birthday. The mother of two shared an adorable flashback photo of herself and Sparrow, who turned 6 years old, from their trip to Paris when he was a baby. She captioned the precious snap, "9/9/9 Happy Birthday Sparrow James Midnight Madden." It's no secret that Nicole Richie has an adorable family, as their cute moments are all over Instagram.