The girl group sound, made famous and unforgettable by acts like The Ronettes, The Shirelles, The Supremes, and The Vandellas, took over the airwaves by capturing the mixture of innocence and rebellion emblematic of America in the 1960s. As their songs rose to the top of the charts, girl groups cornered the burgeoning post-war market of teenage rock and roll fans, indelibly shaping the trajectory of pop music in the process. While the songs are essential to the American canon, many of the artists remain all but anonymous to most listeners. With more than 100 subjects that made the music, from the singers to the songwriters, to their agents, managers, and sound engineers—and even to the present-day celebrities inspired by their lasting influence.