British marmalade, jam and jelly brand Hartley's has teamed up with TV personality Charlotte Crosby to help prevent the nation from a 'diet wobble' this January.

The campaign features the Geordie Shore star dressed as an angel and a devil to promote the brand's 10 Cal Jelly Pot, and she commented 'I know how hard losing weight can be, and I have tried so many fad diets, and they just don't work. This January 26 million of us are going to be trying to shed those Christmas pounds, and 52% of people will wobble from their January diet because it is just too hard to stick to.... When I get a craving for something sweet, I just eat a Hartley's 10 Cal Jelly Pot. They have only 10 calories in them and they satisfy that sweet craving, you also don’t get the guilty feeling after'.