The political punks eschew the politics and have a good old knees-up on their raucous 13th album. Green Day have been bold and brazen and free of pretence. Their intent is laid bare when comparing two of the band’s record sleeves: ‘American Idiot’ was a heart like a hand grenade, ‘Father Of All’ is a unicorn puking a rainbow. Don’t try to make sense of it. Just enjoy.