They are the voices behind the greatest rock, pop and R&B hits of all time, but no one knows their names. Now, in this award-winning documentary, director Morgan Neville shines the spotlight on the untold stories of such legendary background singers as Darlene Love, Merry Clayton, Lisa Fischer, Judith Hill, and more. "More than a tribute, the film is a recognition of the talent and sacrifice that many of these vocalists have invested in often challenging...