I was at a Rolling Stones concert in the mid 90s in Paris and we had 2 first parts. First one was a realtively unknown canadian rock/country style guy. The guy was listened and even applaused.
Then the second first part was Bon Jovi and boy, that was so, well embarrassing, that everybody sat down and turnded their back at the scene (with massive boos too). Was fun to be there
Oh, and the effin old Rolling Stones can really "move" a crowd (even for non fans like me).