I went to one back in 1991.
Ice T
Butthole Surfers
Jane's Addiction
plus a bunch of other bands I have forgotten....
One of the Butthole Surfers was the son of children's television star "Mr. Peppermint." He was a kid's show host on WFAA in Dallas, with a straw hat and red and white striped jacket. Characters on his show were Mr. Wiggly Worm and Muffin. I saw an interview with Mr. Peppermint, and it sounded so weird to even hear him say "butthole".