The clothes were awesome, the hippies were really dirty and there were so many drugs. They were doing announcements over the P.A. telling which acid tabs were bad.
I didn't know who about half of the musicians were at a glance, but I recognized their songs. It's really cool to watch these people sing these "oldies" that I have only heard on the car radio while they were in their prime. Because it makes the songs so much more raw and just ... groovy (haha).
I was especially enthralled with Joe Cocker. He is so cool! I never ever would have guessed, while watching the Wonder Years or whatever, that this passionate man in a tucked in tie-dyed shirt (who maybe has a speech impediment?) was singing that song. And his backup singers blew my mind too...because THEY'RE MEN. I wouldn't have believed in a thousand years that men sang that part. Here's the video, I've probably watched it seven times this morning. The best part is from 4:02 to 5:30 if you're in a hurry. And you can laugh at the bald guy on the left if you're so inclined.
Bonus points if you can tell me where to get boots like that. (6:40)