When a 29-year-old Rhodes Scholar and Army Captain rolled into Nashville in 1965, he resigned his commission and took a job sweeping floors at Columbia Records while realizing his true love: penning country songs. It wasn’t long before Kris Kristofferson began to rewrite the Music City songbook. “I think Kris changed country music in that he made songwriters sit up and pay attention,” Johnny Cash once said. “He made some of them work at their art rather than just rhyming words and using catch phrases and clichés.” Influenced by Hank Williams, Bob Dylan and 16th/17th-century poet William Blake, Kristofferson delivered songs like “For the Good Times,” “Sunday Mornin’ Comin’ Down,” “Me and Bobby McGee” and dozens of others highly regarded for their emotional authenticity and, in certain cases, a sexual frankness that pushed Nashville boundaries. He went on to sing his own tunes, although did not become a front-rank star. Kristofferson achieved his biggest fame as a movie actor, with a lengthy filmography that runs from 1971 until now. Today, at 77, with that rugged face, dime-slot eyes and grumble of a voice, he remains a quietly charismatic presence.