Kris Kristofferson is one of the most revered singer/songwriters in American history. Since the ’60s, hundreds of artists have tackled his tunes, including Janis Joplin, Johnny Cash, Al Green, and Willie Nelson. There’s no composer quite like him: A Rhodes scholar, he’s brilliant at injecting classic country heartache with a sense of the poetic that rivals Bob Dylan’s on such classics as “Sunday Morning Coming Down” and “Me and Bobby McGee.”