tl;dr
Equilibrium (German metal), Finntroll (Finnish folk metal), Rhapsody/Rhapsody of Fire (Italian symphonic RAAAAAGE metal), Dschinghis Khan (70's German pop), Kaizers Orchestra (Norwegian rock so alternative, it defies subgenre categorization). 5 of my absolute favoritest groups in the whole of creation.
The Royal Scot Dragoon Guards. Scottish... music. Let's be honest, is it possible to go wrong with bagpipes? While you're at it, just look up some other celtic music, most of it is pretty sweet, ranging from energetic and vaguely rocking to muscle-melting relaxing.
Have you found the entire AC\DC discography yet? It's worth it just to hear the differences between live and studio versions of their best songs. Oh, and not to mention some of them have been done live more than once. When you're sure you have all the AC\DC you can find, go ahead and find some Guns n' Roses, Aerosmith... whatever suits your fancy.