Hm, I didn't know Acen was this last weekend. A couple of my good friends went (strange they didn't mention it...maybe some of them didn't go because it was finals for them
), so I'll have to ask them about it. I used to go back when I was in high school 5 years ago, but I haven't gone since.
Unfortunately, I don't like X Japan in the least, but that's really cool of him and I bet was a really good treat for everyone.
EDIT: I just watched 1 minute of the video (as I said, I'm not really interested in X Japan...) and he's got really good English!! I'm really impressed!