Best concert you've attended

I'm a little hazy on the details but Willie Nelson and Chuck Mangione at Red Rocks in 1981. 

Bonnie Raitt @ a bar (The Airliner) in Iowa City, IA on a Thursday or Friday evening (1973 maybe).

Not advertised @ all and she was a backup musician for someone else playing @ Hancher Auditorium the following evening (forget who).

Bonnie, drums and bass (3 piece band on a tiny little stage).

Really heavy strings on her Strat (9's maybe) and an incredible guitar player/vocalist - pretty as well.

DeKay

For performance 

Return to Forever, Romantic Warrior tour

Kansas, Point of Know Return tour (30th Anniversary tour was great as well)

for fun

Shelia E. - we all got to go on stage and dance with the band.

War - the lead singer gave my wife the microphone on the chorus to Why Can’t We Be Friends