Martha becomes Sports Illustrated Swimsuit's oldest cover girl at 81

America's 81-year-old businesswoman Martha Stewart has become the oldest cover girl of Sports Illustrated's annual Swimsuit issue. "I don't think about age very much, but I thought that this is kind of historic," she said. Stewart rose to fame in the 1980s after writing cookbooks and currently hosts three programs on Roku, besides running her own restaurant in Las Vegas.