even better than the real thing

This is old news, but a fantastic prank. A New York improv group impersonating U2 took to a rooftop for an imprompu "concert" across the street from Madison Square Garden the same day the real band played there last year. (U2 has played unscheduled shows in L.A., Dublin and New York, which added credibility to the prank.)

The imposters got through almost five songs—including an encore—before the police stopped the show. Because the band (mostly made up of members of a cover band, dressed to the part) were barely visible from the street, most onlookers bought that it was U2.

The group's recount of the event is hilarious, with a detailed look at the planning and aftermath of the event, include the cops' reaction to learning that The Edge was impersonated by a Korean American.