The most memorable was Crosby, Still, Nash and Young in Milwaukee around 1974. They played in the old Brewers Stadium. They came out and played for a couple hours, then left the stage and came back out to do solos and all kinds of combos with one another. Then they came back and played for another hour or so and did 3 encores. About 5 hours long.
I've also seen The Grateful Dead and Yes, several times each, the Allman Bros, Fleetwood Mac, the Eagles, Nuge a few times, Chicago, Boston, ELP, Grand Funk Railroad, KISS and the Pope the same day, and a whole lot more I can't recall just now.
I still go to concerts but these days they are all Christian artists.
