The twin-site festival will also host the likes of Paris Paloma, Cruz Beckham and Florence Road this summer
Paloma has been supporting Florence + The Machine on their 'Everybody Scream' tour
Alabama Shakes, Soulwax, Belle and Sebastian, horsegiirL and many more will also join the Kobetamendi festival next year
Other acts who have recently joined the effort include Shygirl, Paris Paloma and YHWH Nailgun among others
Paris Paloma will open on all dates on the trek, which includes stops in Glasgow, Birmingham, Manchester, London and more
"This is how I imagine Sybill Trelawney and Nanny McPhee would be spending their free time, raging against the patriarchy"
The new additions join Gracie Abrams and Finneas on the bill
Artists joining him include Gracie Abrams, Finneas, Gigi Perez and more
Rachel Chinouriri, Ash, The Fratellis, Sam Ryder and The Big Moon are among performers
It includes her biggest headline London show to date
PP