Decide which Celebs body shapes you have?

You've eaten too many mince pies, drunk more than enough mulled wine and may have turned your thoughts towards working off the Christmas pounds.

But before signing up for a gym membership, perhaps you should decide which of these body shapes you are. Because that is the key to successfully achieving your goals, according to celebrity personal trainer Matt Roberts.

Mr Roberts, whose clients include David and Samantha Cameron, said women's bodies fall into four categories -- apple, pear, hourglass and tubular.

And as he gave his New Year's fitness tips, which include swearing off alcohol for at least a month and cutting out all dairy except for milk in tea, Mr Roberts said it was 'crucial' to work with your shape.