Ok, here's the thing about this pre-trend alert. It isn't really a trend. It is a classic. But sometimes we think classics stay the same indefinitely. But actually classics are always being updated — the shape of a blue jean, the cut of a trench, constantly evolving and modernising. And so it is with this classic — the black suit and white shirt combination. For lady people like Alexa Chung, who wore it last week.

Actually I liked Hailee Steinfeld's interpretation more. She also wore this classic combination last week, but with her youthful flair — the cropped leg length, the red lips, the minimalist shoe. Pretty much the same as Alexa, but sharper and better. And it isn't often I will say that someone wore something better than my mate. So you have the new classic rules here, people. Carry on. Do it.