First the release will be postponed, then due to circumstances it will be postponed again, then because of summer holiday it will be postponed again, then because the band figures the album isn't quiet ready yet it will be postponed to 2018...
"Dirty Day is a father and son song. 'It's a dirty day', was an expression my dad would use and there is a lot of him in there but it was also influenced by Charles Bukowski, the great American writer and drinker. The song is about a character who has walked out on his family and, years later, meets the son he's abandoned. It's not about my father but I used some of my dad's attitude in it."
did you know
The original working title of "Exit" was "Executioner's Song" because U2 was using a lot of literature as their jumping off point for the songs in terms of just taking their work in a slightly different direction.