Today we celebrate the immensely talented "Mama" Cass Elliot's birthday! Here she is performing her version of "Dream A Little Dream" live on The Ray Stevens Show in 1970. Cass was one of the main cast members for Ray's show and he had a blast working with her. She was hilarious and had such an amazing voice. #HappyHeavenlyBirthday Cass! #raystevens #mamacasselliot #casselliot #happybirthday #dreamalittledream #raystevensshow #liveperformance #70stv #70sfashion #70stelevisionshow #happybday | Ra