This certainly seems to fit that criteria, as I'm fairly certain Shakespeare didn't have this in mind when he wrote the speech:
The Metal Shakespear Company's rendition of the famous speech from Act III Scene I of Hamlet otherwise known as "To Bleed Or Not To Bleed" (via prettyarbitrary).
Given how much overacting you can get away with in heavy metal, it's like giving them free rein to go bananas with it and they seem more than happy to oblige.
What's more, apparently, there's a whole album of it!
Though this be madness, yet there is method in 't.