Florence Ballard Diana Ross, then going by "Diane". Betty McGlown completed the original lineup and Jenkins named them as "The Primettes". The group performed at talent showcases and at school parties before auditioning for Motown Records in 1960. Berry Gordy, head of Motown, advised the group to graduate from high school before auditioning again. Ballard eventually dropped out of high school though her groupmates graduated. In 1960, Ballard was raped at knifepoint by local high-school basketball player Reggie Harding after leaving a sock hop at Detroit's Graystone Ballroom (she had attended with her brother, but they accidentally lost track of each other).
Girl group became one of the most popular singing groups from 1930 to 1936, had over twenty hits. The Andrews Sisters started in 1937 as a Boswell tribute band and continued recording and performing through the 1940s into the late-1960s, achieving more record sales, more Billboard hits, more million-sellers, and more movie appearances than any other girl group to date. The Andrews Sisters had musical hits across multiple genres, which contributed to the prevalence and popularity of the girl group form. The rise of girl groups appeared out of and was influenced by other musical movements of the time period. Vaudeville created