Celebrity BFFs are having a moment. But being the ‘normal’ friend comes at a cost

Celebrity BFFs are the subject of Khloe Kardashian’s new Hulu reality show, ‘The Girls’, which offers a glimpse into the lives of the friends who have orbited the Kardashian family for decades. Ellie Muir speaks to a former best friend of a famous TV star, who reveals the unwritten rules of being a plus-one in this glamorous world, and investigates how celebrity BFFs have become the next frontier of fan culture