Carmina Burana.
which version... the Opera by Orff or the Techno version by Apotheosis
I would say "O Fortuna" from Carmina Burana. Music to invade Europe by (Carl Orff
was the official composer to the Third Reich, you know).
I'm surprised no one has said "Hair of the Dog" by Nazareth:
"Now you're messin' with... a son of a b****!"