I've been to a lot of concerts especially when I was younger. Pretty much saw them all except i never saw the Beatles as they were done before my time. Saw the Stones though, Floyd, Zep, Black Sabbath several times, Zappa, and a ton of others. THe one that stands out was Weird Al. Of all the performers, he was outstanding. His band was flawless and capable of playing any style imaginable. THey would move from old school hard rock to disco to rap to whatever and play as if they had been doing so their whole lived. Very entertaining.