Yeah I went. If you have never been to a rock concert before it was a sight to see and "a pretty good time" according to my friend who went with me that has NEVER been to a rock concert. He grew up Pentecostal.
The "Mayhem" took place at the OKC Zoo amphitheater, which is run by the city, and due to city ordinance "cursing" is not allowed and performers will be fined $5000.00 for breaking the law.
So there was mayhem without the vulgarity, so to speak.
I'm not ashamed that I went, it was a free ticket and I was there as more as a curious onlooker or amateur anthropologist.