Oasis's tour gobbled up Edinburgh audiences while fringe comics put on shows about Britpop and Arctic Monkeys. The music industry and the funny business could be more entwined than ever 'Comedy is the new rock'n'roll!" This line, variously attributed to a defunct listings mag, a member of the Comedy Store Players and Janet Street-Porter, became common currency in the 1990s, when comedy gatecrashed arenas with Newman …