The Marvelettes

The Marvelettes were an American girl group formed in Inkster, Michigan in 1960, consisting of schoolmates Gladys Horton, Katherine Anderson, Georgeanna Tillman, Juanita Cowart (now Cowart Motley), and Georgia Dobbins, who was replaced by Wanda Young prior to the group signing their first record deal. Achieving popularity in the early to mid-1960s, they were the first successful act of Motown Records after the Miracles and its first significantly successful female group after the release of the 1961 number-one single, "Please Mr. Postman", one of the first number-one singles recorded by an all-female vocal group and the first by a Motown recording act. The group struggled with problems of poor promotion from Motown, health issues and substance abuse, with Cowart the first to leave in 1963, followed by Tillman in 1965, and Horton in 1967.