We also had Million Dollar Quartet, which focused on the biggest stars to come out of Sun --Elvis, Johnny Cash, Jerry Lee, and Carl Perkins.  Not the runaway smash those two were, but a great show nonetheless.

Never say never about punk or rap.  Rock'n'Roll was once the devil's music and many said it wouldn't last.  My daughter' generation still listens to Ramones and Buzzcocks (40 years on) and Public Enemy (over 30).  One day an enterprising impresario will likely bring one or the other to the stage.