Hey Mistery! Why yes! I love W.I.T.C.H. ! It is one of my favorite series. Elyon, my avatar, is one of my favorite characters. You probably do, but do you like the series? Also, welcome to ZD, I see you just joined recently.
I think Luka Megurine is going to be the the next Alice, here's some more on my playlist:http://www.mixpod.com/playlist/86832757
There's some other songs that aren't related to Vocaloid. There's Zelda themes,Metroid,and Kingdom Hearts.
i found it on this channel, it has all her Korean Demos, she only has two Japanese demo songs so far. Here's one of my favorite songs, the girl in the video is called Rin Kagamine:[video=youtube_share;0Ox5-fEH4Ww]http://youtu.be/0Ox5-fEH4Ww[/video]
You're a fan of Portal, I never played the game. But I want to, I was watching a video of GLaDOs singing, this person made a video in this program call MikuMikuDance(you have to listen to the program called "VOCALOID" to understand it,well it's going to be strange because it's either in Japanese or Korean(if you look up SeeU) ) I know what the video is called, but I need to find it again.