It’s hard to imagine a world that doesn’t accept piling your hair on top of your head and heading straight out the door like that. It’s like trying to think of a world where skinny jeans don’t exist, or selfies, or HD brows. How did people live before all that?

It took me ages to get round to the idea of a top knot, but like everyone else with long hair – boys included – it caught on. Why? Because it makes us look taller, give us a non-surgical facelift, and it’s easy to do. Over the past year or so, however, it got a little bit basic. For ‘hair-up’ days, plaits began to take over, plaits in all shapes and forms, but particularly boxer braids. But in as quick a turn around as Kim Kardashian going from bleach back to black, those boxer braids were out.

And the top knot is back. Hurrah!

Everyone is doing it, including the lovely Rosie Huntington-Whitely.