When I first heard Led Zeppelin's "All My Love," I thought it was just another rock love ballad written for some girl. When I found out that Jimmy Page had written this song after the unexpected death of his 6 year old son, I understood the emotions portrayed by this tune much better. Now I cry when I hear it.
There is a song about a guy who enters a car race to get enough money to ask his girlfriend to marry him. He proposes to her while he is dying after an accident. Makes me cry just thinking about it, but I can't remember the title or the artist.