Help me with this one, guys. I've googled, but found nothing. I'm looking for the shows with biggest duration. I've looked for through Britney, GaGa, Bey's shows but most are the average 110 minutes shows. I read somewhere there was a tour with about 30 songs on the setlist (besides interludes and stuff) but I don't remember which tour was it.

Some electronic concerts go on for >4 hours... I heard a DeadMau5 concert went for 5 hours once.