I'm pretty sure those of you who have watched Naruto have heard this (or these) songs. But, if you haven't watched Naruto, then I suggest you listen to these. They're sad, but also beautiful. :) I feel like crying every time I hear these, and I usually do, mostly when I'm listening to them with a Naruto scene.
Sadness and Sorrow
http://granite1987.imeem.com/music/eAN1cilp/sadness_and_sorrow/ (http://granite1987.imeem.com/music/eAN1cilp/sadness_and_sorrow/)
Sadness and Sorrow (piano version)
http://hoshidreamer.imeem.com/music/CZqx8QSy/sadness_and_sorrow_piano/ (http://hoshidreamer.imeem.com/music/CZqx8QSy/sadness_and_sorrow_piano/)
Here's an extra, because it sounds kinda sad too:
Hinata-Neji's Theme
http://ladyyinyang.imeem.com/music/brlVLovj/hinatanejis_theme/ (http://ladyyinyang.imeem.com/music/brlVLovj/hinatanejis_theme/)
No no, they're allowed.