You can tell it’s festival season in London purely by the number of glittery faces and flower headbands you see on the tubes. A couple of weeks ago, I was one of them. Normally a Wireless festival goer, being a fan of R’n’B and Hip Hop, British Summer Time sure was a change to the usual experience I was getting used to year after year. But with Justin Bieber playing, how could you say no? And I can honestly say, I loved it. We didn’t have to make our way through the usual stampede of festival goers to get in, or queue for ages at the bar, in fact there was almost no queue at all. Yet it was still really busy. There were festival…