There are many versions of Lilium! {It's a song from Elfen Lied, a very bloody anime, which I'd like to watch soon...}
I think Lilium is latin for Lily...
Lilium-Moka Version
Lilium-Music Box version
I don't think there are many other versions of Lilium. ^~^; I know there is a vocaloid version(Posted in "Vocaloids~!), the original, and a Saint version....but I think theres another. I just don't remember what it is.
So if you find any, (or just AMVs or Lilium or Elfen Lied) go ahead and put them on this.