For many years, the late Ian Stewart was always regarded as the 6th Stone. Years later he passed away and Bill Wyman quit the band. Then we were left with four Stones. So who, in your opinion, would you call the unofficial "5th Stone"? Could it be Darryl? Maybe Chuck Leavell? How about Bobby Keys or even promoter Michael Cohl? As far as I'm concerned, it could be anybody in the Stones' inner circle of friends. Remember, the unofficial "5th Beatle" was everybody from disc jockey Murray the K to Brian Epstein. Or is there no unofficial "5th Stone"? What do you think?