Dick Van Dyke isn't letting his age get in the way of a workout! Rick Springfield, 76, shared a photo via Instagram on Friday, September 26 of the Mary Poppins star, 99, flexing his muscles at the gym. Clearly impressed by Van Dyke's commitment to fitness, especially at his age, the musician quipped, "I thought I was doing well at 76." Springfield shared more context behind the photo in the post's caption.