UNITED STATES – APRIL 30: JOHNNY CASH – "The Johnny Cash Show" – 4/30/69, Johnny Cash, (Photo by ABC Photo Archives/Disney General Entertainment Content via Getty Images)
THE TONIGHT SHOW WITH JAY LENO — Episode 1639 — Pictured: (l-r) Musical guest Tim McGraw performing on July 12, 1999 — (Photo by: Paul Drinkwater/NBCU Photo Bank/NBCUniversal via Getty Images via Getty Images)
Willie Nelson performing live at the Hammersmith Apollo, London with 'Trigger', his trusty Martin N-20 guitar. (Photo by Howard Denner/Avalon/Getty Images)
