After finishing her schooling, Shelley signed on full-time at her modeling agency, Ford Models Inc., and became one of the top models in the United States, booking countless fashion spreads, print and TV ads as well as magazine covers including Glamour, Mademoiselle and Vogue. In 1976, she jumped to Supermodel status via a Revlon commercial for Charlie Perfume. She was one of first models able to negotiate previously unheard of, lucrative and exclusive deals with a giant cosmetics company. Shelley's image catapulted the Charlie brand to iconic status. Everybody in the world wanted to be a Charlie Girl because of Shelley. Her portrayal of the confident, fabulous and independent woman who was unapologetic and happy about that fact captured the imagination of many worldwide and made Charlie one of the best-selling brands in history.