"Rain"

I absolutely love the song "Rain" by Angela Aki. I just saw the a video of her playing it on a piano and singing and it made me like the song even more. I don't understand a word of Japanese, but you don't really need to understand the language to appreciate the song.

Some might also recognize her song "Kiss Me Goodbye" (live Japanese piano version and in-game English version) from the Final Fantasy XII soundtrack; also a very emotionally gripping song.

I really, really love the solo piano in these live performances, it almost makes me want to start playing again.