Watch this without crying. Go on, just try.
YouTube - The X Factor 2009 - Official music video - You Are Not Alone
You know, there was something about the pairing of that song, with the sick children that I didn't like... can't quite put my finger on it, but it just didn't "work" for me (in terms of being as moving as the producers hoped it would be).
I don't know what song I would have thought more appropriate, but it wasn't that one...