Anything from Metallica or the Scorpions is great driving music. Something hard and loud is just what the doctor ordered when I'm on out and about. The Offspring is great too. You can shout out their songs and they still sound good. Of course, I'm only 26 so my music taste is sort of weird.
One of the questions I asked my wife that made me marry her was if she would attend a Metallica concert with me. She said, "Hell ya! They rock." I went ring shopping.

I was a long haired hippy dude then and I've since tamed down, but in my heart I will always be head banging.
