Dio - Rainbow in the Dark. Just kidding.
I was thinking a Bond theme would be amazing. Live and Let Die? Technically a slow song I guess.
I liked Chas's pick: Surrender. That's appropraitely epic. I can tell you from countless karaoke experiences it's rough to hit the high notes. What about Auf Weidersehen?! The handful of times I saw Cheap Trick they would close out a show with either Dream Police or Auf Weidersehen. Either of those would be stellar, though I love Auf Weidersehen.