Today in a surprise announcement Okkervil river has been added to the line up.

The Texan band join the 6th edition of the festival, which will be headlined by Joanna Newsom, Mogwai and Beirut also feature a UK festival exclusive from Midlake - plus appearances from Lykke Li, Laura Marling, The Fall, Wild Beasts, The Walkmen, Tinariwen, Gruff Rhys, Joan as Police Woman and former Czars singer John Grant as well as comedy, literature, art, peacocks, astoundingly good food and an enchanted wood full of mindbending surprises and the occasional disco.