‘You can only be a real star if you're thin.' Those words escaped Amy Winehouse's lips last year at a music awards show to Grazia journalist Louise Gannon. In this week's issue (out today), Louise revisits this theory after American actress Tina Fey claimed last week that she only became famous after losing 30lb. Sad, but the pressure to be skinny really does exist. Sophie Dahl once told Louise that during her curvy size 12 days as a model, the other models would refer to her as ‘the fat one'. Er, a size 12 is hardly fat, right? Louise brings you the inside scoop on the expectations and extremes that these ladies put themselves under and Grazia delves into the stories in a before and after of A-listers from the infamously dramatic weight losses of girls like Nicole Richie to the less shocking but very noticeable pound-shedding of say, Lily Allen. But we've all seen them get skinny, so do you agree with Louise's findings: do you have to be thin to be famous?