Canadian singer Colter Wall performs Willie Nelson’s “Red Headed Stranger” at the Country Music Hall of Fame and Museum during the opening concert in 2018 for the museum’s major exhibition “Outlaws & Armadillos: Country’s Roaring '70s." It's a song that helped shape a burgeoning Outlaw movement. That phenomenon increased country music’s audience in the 1970s, led by pacesetters such as Nelson, Waylon Jennings, Kris Kristofferson, Guy Clark, Bobby Bare, and many others—a time defined by artists i