Help! Which Ayu song is this?

[rikku411]

Hey guys, I just finished watching Arena Tour 2005 ~MY STORY~ (which was awesome! by the way)...

and at the end of the DVD version, they have some behind the scenes clip and throughout the whole thing they play a song that Ayu sings.

I know I've heard it before - I just know it! - but I just don't know what the title of the song is?

Can someone please help *puppy eyes*?

Here is the .mp3 rip of it: http://sharebee.com/b528abb5

Thanks!