Steely Dan at Red Rocks. Keith Carlock on drums. It was drizzling rain and they were squeegee'n the stage. Then the fog slowly engulfed the entire venue giving it the appearance that it was floating in a cloud. Carlock's drumming was just amazing, didn't even know who he was but been a fan ever since.
Herbie Hancock at Mission Ball room a few years back.
AC/DC at little old Knoxville Civic Coliseum in 1977. Not great musicianship of course, I but I was only about 18 years old and I had never seen that kinda of energy coming off a concert stage and have not since. Place only holds about 10K people but the entire place was electrified.

