Bruce - you should check out the Time Life Doo Wop DVD series. They have about 10 of them. Jerry Butler hosted a number of PBS shows from Pittsburgh over the last few years. They went out and scoured the country looking for the groups from the late 50s/early 60s. Wherever they found them, they grabbed the ones that were still alive (at least I think they were all alive), dried them out, dressed them up & turned them loose on the stage. The whole thing turned out great and most of the groups had filled in the dead guys with replacements. I was amazed at how well they did their old songs.

The Diamonds (Little Darlin'), The Drifters, The Tokens (Lion Sleeps Tonight), Jay and the Americans, The Shirelles - the list goes on. Lotsa balding or gray haired folks who were clearly of retirement age, but they could still get it done. Check it out. My wife and I still watch the things on a regular basis.