Kevin Bacon has shared a throwback photo of him and his daughter Sosie in order to celebrate her 31st birthday, and the two have changed so much over the years.In the photo, a young Sosie can be seen sat in the arms of the well-known actor. And although it's safe to say the 31-year-old has changed the most since this photograph was taken, Kevin's long haired and rectangular glasses look is also quite different from how he styles himself today.The 64-year-old actor posted the photo to both his Instagram and Twitter pages, along with the sweet caption: "Happy Birthday to my girl, @sosiebacon.