Disclaimer: this review is painfully biased. Sorry.
I entered the arena through a crowd of hysterical girls - I left through a crowd of cold, patient parents.
Ah, that's right, I'm meant to be too old to be enjoying this concert. But age is just a number, isn't it? Yes. And this 37-year-old is going to rave it up tonight. Do they still say rave?
I spot Lorde in the crowd. So do lots of others. Can't a girl enjoy a boy band in peace? As One Direction take the stage, it's hard not to be caught up in the excitement. The place is full to the brim, shrieks and giggles adding to the wall of noise.