I went to a Jack Johnson show by accident once and all I heard was 10,000 bored people talk over him.
Unrelated, Miles Davis has a new album out and it's very controversial. I guess the musicians who played on it never wanted anyone to hear for some reason but I think it's great. This is 1971, right at the peak of Miles inventing fusion jazz/rock music. He was inspired by Hendrix who he had seen a few years before.
I let this album play all night while I slept and was totally caught up in it the entire time. Very psychedelic and absolutely sprawling. This music is cool!