I've been watching the 1985-87 sequel of The Twilight Zone.

Season 2, episode 5 is called "Night Song" & features a fictional character called Simon Locke singing a song of that name.

I immediately thought "that's got to be Stephen Stills". Turns out, not only is it is Stills, but the song is on CSNY American Dream (which I own but obviously don't play very often!).

And I thought I'd discovered a real rarity. Oh well........

http://en.wikipedia.org/wiki/Nightsong

Edit/addition: I finished the episode. 2 other comments: Stills briefly sings part of a 2nd song. I can't find any info on it on the net. No clue what it is. I also looked at American Dream,. There are a number of songs (at least 5) that are familiar to me from that, but I had forgotten about this one. Sure recognized SS' voice on the TV episode fast, though.

"night song" is my hidden gem of the whole CSN(Y) catalog.

a great album closing song in the vein of 'everybody i love you".

"why not keep on singin anyway"