Beautiful at Every Age

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


When Preston gave birth to son Benjamin in 2010, she wasn't sure if her body could bounce back. But keeping up with her active toddler and following the Organic Liaison weight-loss program, the actress shed the baby weight. "I lost 39 lbs.," she told PEOPLE, "[and] have more energy than I had 20 years ago – and I feel amazing."