They say with age comes wisdom, but in Christie Brinkley’s case, age also brings on even more beauty. The stunning birthday girl has graced CoverGirl ads, Sports Illustrated covers, and the big screen, but this supermodel turned actress is more than just your all-American beauty. This mom of three manages to run fragrance and jewelry lines, while strutting her stuff on the Broadway stage as Roxie Hart in the musical hit Chicago. She also devotes her “free” time to several charitable organizations, including the Make A Wish Foundation and the American Heart Association. She’s a model in more ways than one, no? Let’s celebrate Christie’s big 5-8 by marveling at how she hasn’t looked a day over 25 for the past 25 years.