In March 1974, she appeared on the cover of Playboy Magazine. She starred in the feature film "Blood Tide" alongside legendary stage and screen actors José Ferrer and James Earl Jones. Filmed on location in the Greek islands, the 1982 film featured her singing a song during the end credits co-written with Shuki Levy, her second husband. She later starred in the 1984 film "Body Double" although her dialogue was dubbed by actress Helen Shaver because the director, Brian de Palma didn't like how she sounded when he was editing the film. Shelton made frequent guest appearances on television series such as "Fantasy Island", "The A-Team", "T. J. Hooker", "The Fall Guy", "Cheers", "The Love Boat", "Riptide", and "Get a Life". In 2008, she was cast to play a rich housewife in the American television series "Nip/Tuck".