Question: When did the performer of song And So It Goes (Nitty Gritty Dirt Band Song) die?
Sentence (from "John Denver"): Denver's music appeared on a variety of charts, including country music, the "Billboard" Hot 100, and adult contemporary, in all earning 12 gold and four platinum albums with his signature songs "Take Me Home, Country RoadsAnnie's SongRocky Mountain
Relevant evidence: No