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.

For the Tibetan Mastiffs living on Snow Mountain, a dog's life has a simple riff: Guard a peaceful village of wool-making sheep from the thuggish wolf Linnux and his rabid pack. To avoid distractions, Mastiff leader Khampa forbids all music from the mountain. But when Khampa's son Bodi discovers a radio dropped by a passing airplane, it takes just a few guitar licks for his fate to be sealed: Bodi wants to be a rock 'n' roll star.

While Farmer Joe is at the National Tractor Society Conference in Reno, his animals go on tour in a broken-down van, performing as the band called Punk Farm.

City-boy Ren McCormick finds he has been moved into an uptight Midwestern town where the local officials have banned dancing and rock 'n roll music. Ren revolts with his best friend Willard and the minister's daughter. A timeless struggle between innocent teenage pleasures and adults' need for rigid morality.

When his band votes him out due to his embarrasing musical antics, Dewey has to make the rent somehow. After intercepting a call for his substitute-teacher roomie Ned, Dewey finds himself in front of a class of elite elementary school students. Dewey decides to take on the music program and makes it his goal to teach them the gospel of rock and roll. His ulterior motive is to get them to compete against his former band for a cash prize.