The singer was one of the greatest forces within country music -- and, really, music as a whole -- beginning in the early 1960s, and his songs and legacy continue to affect fans all over the world.
After scoring hits with Wichita Lineman and Galveston, Campbell became a legitimate superstar. He turned to the silver screen in the late '60s, starring alongside John Wayne in the Oscar-winning True Grit. The hits continued into the '70s, with songs like Rhinestone Cowboy and Southern Nig…