Speaking of the Stones being horrible, back in the mid 70s my buddy Joe was at a Stones concert and it was one of those "off" nights when nothing can go right, and after awhile the audience started to make fun of them.
So Jagger walks up to the mic and says "if anyone in the house thinks they can do better, come on up" and they started into the next song.
Pretty soon there was a bit of a commotion and the audience parted to let someone move up to the stage. This guy in jeans and a denim jacket gets past security and jumps up on middle stage right in front of the audience. Jagger looks, and does the worlds biggest facepalm.
Mr. Denim walks over to the microphone and says "Good evening....... I'm Eric Clapton"
Of course the audience went CRAZY, and Clapton joined in... and Joe said it turned into a flat awesome concert after that.