This is one of the greatest songs ever written. It was released by The Kingston Trio in 1964, became a minor hit as a peace message between religions when released by The Youngbloods in 1967. Then at the height of the Vietnam war the song was rereleased and became a classic. Since I couldn't get my favorite fictional TV character Kevin Arnold on the phone I didn't know which year to include it. https://en.wikipedia.org/wiki/Get_Together_(The_Youngbloods_song)