The three-day Spanish music festival takes place in the northern city of Bilbao on July 12-14.
Noah and the Whale and Band of Skulls have also been confirmed for the event, which recently announced Radiohead as one of its headline acts.
Along with a roster of international talent, the festival will showcase the best of the current Spanish indie scene, including Vetusta Morla and Lori Meyers.
Tickets for the event are on sale now and an early bird three-day ticket is currently available for just £73 until January 24.
> Radiohead add more dates to world tour
Watch the music video for Snow Patrol's latest single 'In The End' below: