Shelley in an ad for Breck Shampoo, 1972
In the '70s, Shelley joined a long line of well-known models who became Breck Girls. Breck Girls were women known for having beautiful hair, appearing in ads and commercials for the Breck brand. Cybill Shepherd, Kim Basinger and Shelley's fellow Charlie's Angel Jaclyn Smith were some of the other famous models who endorsed Breck hair products. In fact, in 1971, Shelley appeared in a Breck commercial herself, for Breck Basic Texturizing Shampoo.
For more on Shelley's Breck commercial check out:
a closeup of Shelley from the ad