When You Dance Around In Your Underwear, What Are You Listening To?

And don't lie!  I know you all do it and I have the surveillance footage to prove it.  Unfortunately, the footage doesn't come with sound so I have no idea what you are listening to. Basically, I'm looking for a kick ass rock anthem with (preferably) an easy and instantly recognizable intro.  The kind of thing that might play in stadiums or that you might listen to to pump yourself up before a big event.  Classic rock is better, but right now I'm open to anything.

Oh and I'm not just asking this so I can have something to shake to in the privacy of my own home.  I do also have some higher artistic purposes...

So, any suggestions?