Now for something really important. Britney Spears has shocked - geddit? - the world by shaving her hair off. Here she is on the right. On her left is a Nazi collaborator; left of her is Gail Porter, and the first one is a punk.

From the BBC:

For most it is confirmation that her life is in free fall, that she is on the edge of a breakdown and in need of help. But why is shaving her locks equated with losing her mind, and why does it still have such a power to shock?

Any significant social movement in recent history has been characterised by hair, be it a punk rocker's Mohican or a hippy's centre-parted locks. It is unusual for a clique or a group not to use hair to make a statement.

"Hair is so significant because of what it is and where it is," says Dr Martin Skinner, social psychologist at the University of Warwick...

Why long hair is so linked to femininity could come down to many things, say experts. It is about youth, health, grace and movement.

Just look at shampoo advertisements, typically featuring models swinging their long, glossy locks. And look at how much the average women spends on her hair - £600 a year, according to one study. Men spend just £90.

Ah, yes, but for many men that works out as more - per hair. But not if you're Phil Spector, without whose picture no post on hair would be complete: