I went to one of those "art" exhibitions in the tunnels about 7 years ago.
Was very interesting. The tunnels that is. The art was the usual standard
issue pile of talentless garbage with self justifying pretentious BS written
on cards nearby trying to "explain" the pieces that you'd expect from
undergraduate art students (ie students who are too thick to do a degree that
actually involves thinking or learning anything).

I suspect that vast majority of people will be there not for the
"art". Heck, I'm quite ready to pretend that I'm looking at the
strings just to get there!