American country singer Johnny Cash (1932 – 2003) plays acoustic guitar in a still form his television series, 'The Johnny Cash Show,' circa 1969. (Photo by Getty Images)
(Original Caption) New York: Singer Johnny Cash performs during a recent concert at Madison Square Garden. The performer is currently on top of the country and western charts, his most notable achievements being recorded performances for inmates of Folsom, and San Quentin prisons. 12/11/1969 (Photo by Bettmann/Getty Images)
NEW YORK – JULY 1965: Country singer Johnny Cash warms up backstage at the New York Folk Festival in July of 1965 at Carnegie Hall in New York, New York. (Photo by Don Paulsen/Michael Ochs Archives/Getty Images)
MEMPHIS – 1957: Country singer/songwriter Johnny Cash poses for a Sun Records portrait holding an acoustic guitar in 1957 in Memphis, Tennessee. (Photo by Michael Ochs Archives/Getty Images)