Merle Haggard and Leona Williams play at the annual New Year's Day San Quentin State Prison concert. Jan. 6, 1976. (Photo by Jerry Telfer/San Francisco Chronicle via Getty Images)
AUSTIN, TEXAS – JULY 04: Merle Haggard (R) performs with Willie Nelson during Willie Nelson's 4th of July Picnic at the Spicewood Springs Amphitheater on July 4, 2003 in Austin, Texas. (Photo by Gary Miller/Getty Images)
