Sports Illustrated Swimsuit Models Answer Everyone’s Burning Question: ‘How Many Bikinis Do You Own?’

The legendary bombshell, 63, is still padding her résumé with supermodel gigs and business ventures like her skincare line, a Prosecco and her book Timeless Beauty. In 2017, she even returned to the Sports Illustrated Swimsuit Issue alongside daughters Alexa Ray Joel, 31, and Sailor Brinkley Cook, 18. "The word 'involved' has a lot to do with feeling young," she told PEOPLE in 2014. "I would be remiss when talking about beauty secrets to not say that one of the best is to care about the world around you. That's what really matters. Even when I'll be sitting here with gray hair and Georgia O'Keeffe wrinkles, people are going to say, 'There is just something youthful about her.'"