As another group of inductees marches into the Rock and Roll Hall of Fame, let's pause for a moment to recognize the many artists who've yet to be recognized. Along the way, the Rock Hall's induction committee has gotten plenty right; no offense to anyone already in, or going into, the hall. But there should have already been room made for influential acts like Deep Purple and Yes, as well as for big names like Judas Priest, the Doobie BrothersIron Maiden and Cheap Trick. And there are more where they come from. In fact, here are 40 Artists Who Should Be in the Rock and Roll Hall of Fame.