Beautiful at Every Age

From Blake Lively and Katharine McPhee to Elle Macpherson and Mary Steenburgen, these stunners prove true beauty is timeless


No stranger to PEOPLE's Most Beautiful list (she was featured in last year's issue), the New York native dished on her secret to healthy living. "Not sitting idle is how to stay young," the Southland star said. "I do Pilates four times a week, I run, and I take vitamins. I feel better now than I did in my 20s."