The Irish band was expected to deliver the album sometime later this year but Billboard reports that multiple sources told them that it and the supporting tour have been pushed back until next year.

The delay comes after the band reportedly scheduled additional recording sessions with producers Ryan Tedder and Paul Epworth. Danger Mouse remains the principle producer for the album, according to the report.

"It seems to be taking longer for them to finish an album as they get older, but the great thing about U2 is that the whole of a record is always better than the sum of its parts," a source close to the project told Billboard. "That magic that the band always seems to capture ... they have yet to capture it."