My favourite band is, perhaps, Skunk Anansie. Here they are with Pavarotti:
Do you know any other rockers that can stand their ground (nearly...) with a classical heavyweight? Skin is superb, imho.
Here's another:
I can't actually find the clip I'm after, but this will give you an idea - I went to Wembley (arena) to watch ELO2 around 90ish and they had a full 100 piece Russian orchestra, they both did sets then they joined for a few songs and it was fukin great... 'wecome to the human race...'
What can you offer?