The sound that defined a generation. Isn't that one of the most cliche lines describing a band that you've ever heard? Why yes, yes it is. They were without a doubt one of the most influential heavy metal bands of the seventies, and they are still influential today. In fact, my 17 & 18 year old sons who prefer harder-edged rock, also list them among their favorite bands. So, what if I were to say to you that you could be going to see them in concert for FREE? Read on, oh faithful rocker.