Documentário / Biográfico
USA,
2014, 116 min
Elenco:
Glen Campbell,
Paul McCartney,
Keith Urban,
Bruce Springsteen,
Sheryl Crow,
Jay Leno,
Bill Clinton,
The Edge,
Blake Shelton,
Chad Smith,
Francis Collins, Julian Raymond, Don Randi, Larry Gatlin, John Carter Cash (mais)
(outras profissões)