Can you have too much of a good thing? The live business could be about to find out.

“I’ve been doing this a long time,” says CAA’s co-head of international, Mike Greek, agent for acts such as Harry Styles, Paloma Faith and 30 Seconds To Mars. “And it seems to me there are more tours happening next year than I can remember, which is a great thing – if there’s a big enough audience for all of them. But right ...