This IS tough. Seen too many to limit it to five BUT:
Pink Floyd DSOM tour WITH Johnny Winter - Hampton, Va. 1972
Yes - multiple times but the best one: Chicago, Ill. 1974
Rolling Stones - Cedar Falls, Iowa 1982
Bruce Springsteen - Ames, Iowa 1981
Joe Walsh - Minneapolis, Mn. 1974
Steely Dan - Mountain View, CA 2000
Eagles - any of six times
I know that's seven, but.....
Honorable mention to Warren Zevon - Iowa City, Ia. 1982 (Under appreciated, he put on a hell of a show)
Pink Floyd DSOM tour WITH Johnny Winter - Hampton, Va. 1972
Yes - multiple times but the best one: Chicago, Ill. 1974
Rolling Stones - Cedar Falls, Iowa 1982
Bruce Springsteen - Ames, Iowa 1981
Joe Walsh - Minneapolis, Mn. 1974
Steely Dan - Mountain View, CA 2000
Eagles - any of six times
I know that's seven, but.....
Honorable mention to Warren Zevon - Iowa City, Ia. 1982 (Under appreciated, he put on a hell of a show)