I always liked Fleetwood Mac's Gypsy - with Stevie Nicks' angelic voice - and I found out recently that the song has a very sad meaning: Stevie's mentor, confidante and friend Robin Anderson found she was pregnant during the recording of the song, then she discovered she was dying and passed away shortly after the birth of her son Matthew.
https://www.youtube.com/watch?v=mwgg1Pu6cNg