Its truly hard to pick just one song, growing up in the 60's as a child, I remember so many songs, especially the ones that I heard playing on my Dads radio, unlike kids of today who have their own "radios" and are plugged into just about anything. I can clearly hear so many groups in my head, Mamas and the papas, fifth dimension, Beatles, Simon and Garfunkel.. the list goes on....Just about anything from one of those groups, takes me back to a much more simplier and fun time in my life!!