The Grateful Dead, in maybe 1979?. My friend's step sister was a Dead head, and she got sick and couldn't go. So we got the tickets, and I at that time had no idea who they were, and figured they must be like Black Sabbath, being dead and all. I was nauseated. I had no idea people like that still roamed the earth, as dirty hippies had gone the way of the rotary phone by the late 70s - meaning my grandmother had one and these people came out of whatever hovel they were living in. So to top off the freak show audience, they were - per usual - lame and lifeless, and the drum head solo - hitting a head to the cheers of the hallucinating - was beyond reality. I spent the show walking around and checking out the bra-less. Then they did an encore which was Buddy Holly and Chuck Berry stuff which I liked in comparison, but was also horrendous and made me appreciate Sha-Na-Na all the more. The Grateful Dead show sucked.