Here's a rewarding project for you to undertake.
Go back into your memory banks and try to remember all the terrific musical acts that you have found yourself present as a member of the audience. You will find this a most enriching experience. It will, no doubt, bring back all kinds of enjoyable memories.
...you will be surprised how many you have momentarily forgotten
Even more fun, is trying to remember who was with you at the concert.
...you might find that a little tougher
Just for interest's sake, here's Matt's list (in no particular order).
The Rolling Stones
Gladys Knight & the Pips
Patti Labelle & the Bluebelles
The Ike & Tina Turner Revue
The Rogues aka The Mandala
Roy Kenner & the Associates
Sammy Davis Jr.
B. B. King
Shawn & Jay Jackson & the Majestics
The Pointer Sisters
James & Bobby Purify
David Clayton Thomas
Sonny Terry & Brownie McGee
Jon & Lee & the Checkmates
Tea Garden & Vanwinkle
...some you will recognize
...some are quite obscure
...some are local groups that I enjoyed
...they were almost all worth the price of admission
…some were free (bonus)