Mate shared this with me... Apart from missing English language lyrics, this has got everything you could want, mad drummer? Check
Guitarist with top off? Check.
Chainmail? Check.
Orchestra? Check.
Choir? No, there are two!
He billed it as possibly the best thing to happen in music. Well, I am loving it anyway :-)
http://www.youtube.com/watch?v=5yHsmZy-YS8&feature=share