I'm in the Flintstones generation, and I remember the chorus of this song with great nostalgia and fondness.
How is it possible that I associated it with the freedom of the musical "Hair" - and not the message of hating the devil? That part was totally subliminal to me somehow! Gloominess = giving Satan a grin? Wow! Totally missed that part!
Well, I guess I shouldn't have expected differently from a show that put dinosaurs together with people. So now I know, but I can't help still liking it. The song brings me such a sweet feeling of gladness that I can forgive the association game.
The Flintstones - Open Up Your Heart And Let The Sunshine In