At age 18, Cupito changed her name to Morgan Brittany and then appeared with Gene Kelly in his Las Vegas show, Gene Kelly's Wonderful World of Girls, as a Dancer. She then moved to New York City, where she modeled for The Ford Modeling Agency, and appeared in several TV commercials and print ads (including a three-year stint as "The Ultra Brite Toothpaste Girl"), and was spokesmodel for brands such as L'Oreal,(Maybelline) Ford, Levi's and Camay. In December 1972, she played 'Cynthia', a childhood friend of Bridget, (Meredith Baxter), in episode 12, "The Homecoming" on the series Bridget Loves Bernie. In 1974, she was hired by the Japanese cosmetics company Kanebo to be the "face" of their product "Ireine", and so moved to Tokyo from 1974-1976 and traveled around the world as the image of "Kanebo Cosmetics". In 1976, she returned to the United States and restarted her acting career.