Taylor Swift's Eras tour. I did so on the stipulation that we could hit Arches, Wind Cave, Mt Rushmore and Devil's Tower too.
I have to admit that it was a very good concert and she played for a full 3 hrs. The funniest thing about the concert though was that since it was at Mile High Stadium, most of the restrooms are for men but they repurposed most of those for women. Even the few remaining restrooms for men were even overrun with women using the stalls. They left us the urinals only. hahahaha