Best-known as one of the singers of the renowned '60s psychedelic pop outfit the Mamas & the Papas, Cass Elliot (or Mama Cass), was born Ellen Naomi Cohen on September 19, 1941, in Baltimore, MD, but grew up in Washington, D.C. It was during her senior year in high school that Elliot began singing (as well as acting), relocating to New York City by the early '60s and eventually touring in a production of The Music Man. With the folk music movement sweeping the nation around this time, Elliot formed the Big Three with other members Tim Rose and James Hendricks, issuing a few un...