I hate to say this but mick jagger is lip syncing for patrs if his performances, and has numerous back-up vocals pre-recorded top make him sound like that, as well as his live vocal send for added realness. There is a group of musicians underneath the stage that play many lead guitar,bass,drum,and other tracks that the band is not actually playing. This is done to maintain a certain quality of show that the fan base is expecting from the legendarty group. In their old age they cannot perform as they use to, jesus chrsit, keith richards is lucky to be able to function as a human being. they are an amazing group and very talented, it is a shame that they must continue on in this manner but many of todays surviving musical legends due this as well, little richard rarely plays his own piano parts, brian wilson is a disaster live, etc. I am not knocking the group but I though I would just put that out there. they are however the largest touring act with 112 semi-trucks leap froggin the world to set up for the show. That is why you tickets cost $116 or whatever it cost. wow all the post I have had todday have been negative. I apologize