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 underappreciated albums (Live at the Recording Studio, The Big 3). The group eventually metamorphosized into the Mugwumps after Rose was replaced by a few other members, including Denny Doherty, but with only an obscure single to show for their hard work, the Mugwumps were kaput by 1964. To make a long story short, Elliot and Doherty eventually teamed up with the husband/wife team of John and Michelle Phillips, forming the Mamas & the Papas by the mid-'60s. Although the group would only remain together for a few short years, their impact on the rock music world was great, resulting in such classic hit singles as "California Dreamin'," "Monday Monday," and "I Saw Her Again," among others.