Beautiful at Every Age

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

MADONNA, 54

After directing the romantic drama W.E. last year, the Material Girl went back to her first loves: singing and dancing, which she's been doing on a world tour this year. How does the 54-year-old keep her body in tip-top shape? "The best thing for your bum is dancing, and I can do plenty of that," she joked.