That's a good idea.
These are the only two songs that I can think of.
Ayumi Hamasaki - no more words Oh my gosh, not only is it my favorite song by Ayu, but this is my song, just... my song.
Feed The Birds from Walt Disney's Mary Poppins Oh my God, I cry every time I hear this song. Without a doubt, I will cry. The music is absolutely AMAZING and just... *exhale* wow.