By the mid-'70s, Shelley was an in-demand model and was getting modeling jobs left and right. She appeared in many ads and was on the cover and in the pages of all the leading magazines of the time. In 1974, she donned Vogue's Dress of the Year for the magazine's September issue. The two-piece dress was dubbed "sweater-and-skirt-easy" as well as "city-polished." It's the "first thing you'll want under a coat/first thing you'll wear without a coat." And Shelley looked absolutely sensational in it.