Midnight Juggernauts will also join the Spanish event
The bash, held in Barcelona and Madrid on July 18-19, has also added Midnight Juggernauts, Mr Flash and Peter Von Poehl to its line-up.
Midnight Juggernauts will only perform in Barcelona, however.
The festival, which takes place at Madrid‘s Boadilla Del Monte and Barcelona‘s Parc Del Forum, is set to feature The Breeders, Kaiser Chiefs, Kings Of Leon, Interpol, Blondie, Primal Scream, The Verve, Foals and CSS.
For detailed line-up information, visit Summercase.com.