Desc: Johnny Cash: One Song at a Time: Directed by Piers Garland. With Peter Curtis, Peter Curtis. Retrace the remarkable story of America's greatest country artist, one song at a time. Watch and experience the highs and lows of Johnny Cash's career, the original man in black. From being a young boy picking cotton in his father's fields, to joining the war effort and his highly acclaimed prison performances. The Rockabilly legend has sold more than 90 million records worldwide, making him one of the best selling artists of all time. Forging an indelible mark on America's musical history, a vital figure in bringing country music to the masses.