I need a song.

[Dagda]

I've been playing around in my head with an AMV idea, but I don't have the music. It would be be one of those amvs that tells an alternate story to the real plot. In this case, the anime would be FF7 Advent Children, and the alternate plot would be that Cloud and Kadaj knew each other in the beginning and are even friends (or become friends in the realy parts of the video). However, Rufus approaches Kadaj and gives him "mother", allowing Sephiroth to begin to exert his control over him. Cloud attempts to stop/save Kadaj, but he succumbs, going insane and eventually transforming into Sephiroth.

Ideally I'd like a song with lyrics that supported this plot and helped make things clear. It'd probably be about concern for a companion (from cloud's perspective) or angry rejection of a companion (from Kadaj's perspective), though I'm open to any ideas you all might have.