What’s the weirdest combination of opening act and main event in a concert you attended?

I’m talking regular concert, festivals with lots of varied acts don’t count.

Mine has to be lesbian folksinger Phranc opening with a typical person-alone-on-stage-with-acoustic-guitar, followed by the Pogues in one of their largest configurations.

I think they lost an opening act and had to quickly find someone else. It was such a jarring contrast. Phranc was fine in theory, I liked her stuff and her songs had a sly humor to them that was fun, but for a crowd amped up for the Pogues, it was not a great fit.