Diane Keaton was the ultimate style icon, both on and off the screen. With her turtlenecks, thick belts, tinted eyewear and bowler hats, the beloved actress - who died at the age of 79 in October 2025 - pulled off an array of legendary black-and-white and monochromatic looks that, truthfully, only she could. "I still love a turtleneck, a hat and a jacket," she told WWD in 2024, stating that she simply wore what she liked rather than trying to conform to a specific trend. "I think I focus more on wearing suits daily than ever before. And wait ... a wide belt.