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. "9/9/9 Happy Birthday Sparrow James Midnight Madden," she captioned the precious snap. It's ** secret that Nicole Richie has an adorable family, as their Cute moments are all over Instagram. Harlow and Sparrow have all sorts of fun memories captured in Nicole and Joel Madden's posts, from lavish vacations in Italy to fun rides on Ferris wheels. See Nicole's sweet post above, and then check out Nicole and Joel's cutest social snaps.