There was some great songwriting in those 70s folk/country/soft rock genre. I've gone down that youtube rabbit hole more than once after a few beers late on a Saturday night.

So I'll vote for Stephen Bishop, who by the way spells his first name the correct traditional way dating back to the Bible, with a ph and not a v, not as it was misspelled in the original post.

He was also in Animal House.

Poor ol'Jimmy
Sits alone in the moonlight
Saw his woman kiss another man
So he takes a ladder
Steals the stars from the sky
Puts on Sinatra and starts to cry