Another song, seriously Aya is a awsome singer, even when pitched, her voice sounds awsome.
Kaze Yomi Ribbon
http://www.youtube.com/watch?v=M8dv8JEpotc
also... Welcome UNKNOWN!
http://www.youtube.com/watch?v=JiLmN0hw76U
this one... I dunno some people might like it. Again, you can feel Aya's voice shine.