Performing on top of Phone Boxes

My mate CK and I had a quick lunch in Princes Street Gardens. I wanted to head up to the Royal Mile to see if I can start my festival blipping. The weather held up and the high street was booming with performers, tourists and SLR wielders.

This act caught a lot of attention though, I had no idea what act they were as, there were no signs and I didn't see anyone giving out flyers for it, pitty. I'm hoping tomorrow might be nice for another wonder up there... but I think I heard bad weather coming.

Update: They are the Cast of "The Railway Children"