Captured Tracks artist releases third album on March 31
Festival takes place in August in the Brecon Beacons, Wales
Singer also jokes that he'd sent rapper photos of his 'naked penis'
Singer also reveals tour dates to support 'Salad Days' LP
Canadian artist previews new album for NME
Singer confirms new record is set for release in April
DeMarco's third Captured Tracks album has been mixed and mastered at New York's Electric Ladyland