Whose bird's nest?Whose bird's nest?In fairness, a hairbrush is probably the last thing on this celeb's mind.

She is going through a very public break-up, after all.

But we'd say the best message Jemima Khan can send to Hugh Grant is that of her hotness.

Sadly, our advice reaches her AFTER she stepped out in London this week, looking like a trip to the hair salon was long overdue...

... But at least she'll know for next time.

So come on Jem - follow in the well-scrubbed footsteps of Cameron Diaz and Dita Von Teese (also recently single) and show Hugh what he's missing.