You know their rousing hits about Cathy and Susie, but check out “Donna, Donna,” featuring Phil and Don Everly's buoyant harmonies and vigorous acoustic strumming. Or try out “Mary Jane,” a psychedelic '60s detour complete with parping horns, buzzy electric guitar, and phased vocals. Away from the girls' names you'll find “Long Time Gone,” a stripped-down slice of traditional country.