A fanlisting is simply an online listing of fans of a subject, such as a TV show, actor, or musician, that is created by an individual and open for fans from around the world to join. There are no costs, and the only requirements to join a fanlisting are your name and country. - TFL

Originally titled as a song is born and performed as a duet with KEIKO, the lead singer of globe, it was written for song+nation, a charity album to raise money for victims of the September 11th attacks. Released December 12th 2001, the single reached #1 on the Oricon charts. A solo version of the song was later included on Ayu's fourth album I am..., titled as A Song is born.

Other Versions:
tatsumaki remix found on song+nation 2 trance
Classical Version found on MY STORY Classical