Celebrities tackle the snow in stylish winter woollies

"Kate has gone for the grungy chic look, and without much effort at all she still looks good. The hat goes with her style and she wears it well. 

"The cut is versatile, so she can wear it any way she wishes but here, her hat is doing more talking than her hairstyle. She doesn't need to try hard and I've not seen a picture where she doesn't look good - she could be wearing a hat like this or a tiara it wouldn't matter. 

"As she colours her hair, it would be advisable to use a conditioning treatment every so often, especially in the winter months."

"Taylor Swift wears this very well. At this time of year when the weather starts to turn cold, hats turn into huge fashion accessories, as well as for keeping you warm. 

"I like the way that Taylor has styled her side fringe here, adding a touch of glamour. If your clients choose to wear a hat, I suggest they carry some dry shampoo around, so when they come to take it off, they will have a more refreshed look rather than the dreaded hat hair."

"Nicole is sporting at least three trends in one go here, which is very brave! The hat has a real 1970s feel, which works with the high-waisted jeans and shades. 

"Retro-inspired hats are everywhere this season, from androgynous bowlers and trilbies, to this kind of wide-brimmed felt style. 

"The leopard print is flattering works well with Nicole's colouring, as she has a warm hair colour and skin tone - but maybe it would be better worn with a toned down outfit."

"Hats can instantly transform an outfit, while fashionably protecting precious tresses from wintry winds - or cleverly concealing overgrown roots. 

"In the case of style queen Fearne Cotton, her beanie hat is cleverly revamped with a trendsetting buckle - a refreshing spin on this season's love affair with ladylike chic. 

"Fearne's fun and irreverent beanie reflects her playful personality perfectly. Hats can hide a million hair sins; but great, healthy hair outshines any hat or outfit any day!"