“It was this over-the-top, monstrous display of kitsch...”

I was there for about half of the Pop Mart Tour in total. It was as mega as you might expect, with upwards of 150 people touring with the band. Then, on any show day, that would double, with local workers and extra security and that kind of thing. With a tour like that, it took an awful lot of bodies.

Right at the start of Pop Mart, we did a documentary, which went out on the American networks. We started in Las Vegas and the documentary was premised on the idea of gambling – and the gamble the band themselves had taken with Zoo TV. Obviously Zoo TV was ground-breaking: it broke all these records and changed the way we thought about tours. Nobody had topped Zoo TV at that stage and so U2 where saying, ‘Well, we now want to be the ones to top it’.