Ahhh Last song…This has to be my absolute favorite song from him…It was the very first song I had ever heard from him, and it’s what got me started on this whole Gackt phase for six years now…XD Btu besides that, it’s really just a beautiful song…I found a live version of it on Youtube where he plays the piano and oh my god I swear I nearly cried!!! (Wait, I don’t remember…I think I actually did…o.O))
As for singing it, holy crap...it's actually one of the harder songs for me to memorize...but then again I think that's just the lyrics...But good luck with it! That’d be seriously cool if you could record it and put it up here...
((http://youtube.com/watch?v=lZ2qkxubxeY : this is the live version I was talking about by the way, seeing as there are a few others too…))