i have run
i have crawled
i have scaled these city walls
Hours before U2's May 21 gig at Madison Square Garden, the band did an impromptu rooftop concert for hundreds of delighted (and some skeptical) fans.
Except it wasn't the real U2; it was a group of improv comics who specialize in guerilla theatre and practical jokes. And this was a big one, with probably a hundred people involved in the planning and execution before the police arrived to shut it down.
Cop: So you were supposed to be Bono? Slocum: Yes. Cop: (looking up and down at 1st generation Korean-American Agent Jinn): And who were you supposed to be? Jinn: The Edge.
Hilarious write-up of it here. There's also a video (Quicktime).