Fans on celebrity watch at Splendour in the Grass after rumours of Keira Knightley and Carey Mulligan appearances Fans got an eyeful of Marcus Mumford from Mumford &Sons but sadly his missus Carey Mulligan was a no-show. THERE was no shortage of celebrity buzz at Byron Bay's Splendour in the Grass this weekend. Chinese whispers spread backstage with rumours Hollywood stars Keira Knightley and Carey Mulligan were to accompany their respective husbands to this year's festival. Punters braved the sloppy mud desperate for confirmation Knightley was watching husband of two-and-a-half months, James Righton, keyboardist with The Klaxons. Meanwhile Mulligan was thought to have jetted in to see partner Marcus Mumford play his Friday night headline set with band Mumford and Sons. Marcus Mumford of Mumford & Sons performs on the opening day of the 2013 Splendour In The Grass Festival in Byron Bay. Fans can't wipe the smiles off their faces as Mumford & Sons headline the opening day of Splendour In The Grass in Byron Bay. Mulligan was side of stage when her hubby performed at Glastonbury last month. Alas, it was just a fun rumour for us Aussies, just like a few years back when music lovers were all excited at the prospect of Gwyneth Paltrow standing side of stage when Coldplay performed or the Twitter frenzy over suggestions Jay-Z would make a surprise appearance on stage with Kanye West. Tunde Adebimpe of TV on the Radio performs on day one of the 2013 Splendour In The Grass Festival. Pete Doherty of Babyshambles gets his act together on the opening day of the 2013 Splendour In The Grass Festival. John Gourley of Portugal. The Man entertains fans on day one of the 2013 Splendour In The Grass Festival. Mulligan was at her husband's side for Mumford and Sons' headline performance at Glastonbury last month but appeared to be a no show at Splendour. Those not able to attend this year's sellout Splendour in the Grass, which continues today, can catch Virgin Mobile's online stream of the best bits on YouTube starting tomorrow. Zoe Nauman flew to Splendour in the Grass as a guest of Virgin Mobile.