This week Bethan Ryder talks with Beauty experts Hannah Mauser, Sienna Piccioni and Brielle Saggese about the huge trend right now for celebrity owned beauty brands. From Pharrell to Gwyneth Paltrow, Kim Kardashian to Kate Moss, and even Stella McCartney, it seems like you're not an A-Lister right now without your very own skincare range. At the time of publishing we hear Brad Pitt has also launched a genderless skincare line. But how does this differ from the celebrity endorsements of the past? What role has social media played in the boom? And which brands do we see chiming with WGSN's trend forecasts for the future?