The Jordanaires: The Story of the World's Greatest Backup Vocal Group

The greatest backup group in the history of recorded music undoubtedly was the Jordanaires, a gospel group of mostly Tennessee boys, formed in the 1940s, that set the standard for studio vocal groups in the '50s, '60s, '70s, and beyond. In their sixty-five-year career, from 1948 through 2013, the recordings they sang on have sold an estimated eight billion copies.

They sang on more than 200 of Elvis's recordings, including most of his biggest hits. They were in three of his best-known movies...