One of the more epic show tunes in recent history, here's "She Used to Be Mine" from Waitress, sung by its composer, Sara Bareilles.
Hal Bynum - Two Women. This wasn't on Youtube, so I uploaded it. It's a recitation, but I think it's a beautiful story.
There are so many in country music I wouldn’t know where to begin but I guess I will try. “1959” by John Anderson
I love the lyric for this one. A rather understated song about both memories and the present. Judging from the adults I have met in my life, this is not far off the mark. Carly Simon´s "GROWNUP". Are we, though?