Sadly, you may have had to be as old as I am, and had been in the 5 places that had MTV, to have seen this video there. Classic tune, best remembered as the love song in Fast Times at Ridgemont High, a book that was better than the movie, if you can believe it... but just barely. The soundtrack actually made the movie great. Seriously, read the book and compare.
"Somebody's Baby" by Jackson Browne. Totally great song.
Wow, I feel old.
-om