We’re toasting to iconic supermodel Christie Brinkley, as she rings in her 61st birthday! It’s hard to believe her age, as the blushing blonde doesn’t look a day over 40. For decades, her enduring beauty has wowed us—Men's Health named Brinkley as one of its "100 Hottest Women of All Time" in 2011, ranking her at No. 16. Brinkley has appeared on countless magazine covers (including InStyle's July 1996 issue), and held one of the longest modeling contracts in history—among her many others—serving as the face of CoverGirl for 25 years. This coming March, Brinkley is set to release her vegan and eco-friendly skincare line, blessing us all with a chance to get her perennial youthful glow! In honor of the legendary model's birthday (and to remind us that age ain't nothing but a number) take a look at Brinkley and other original supermodels, from when they got their start to where they are now.