From there on in, the show’s an unreserved triumph, with none of the opening night nerves or hesitancy which was evident when the Vertigo tour pitched up in Dublin four summers ago.

The first visual set-piece comes when the metal walkways swing round and three-quarters of the world’s biggest rock band cross from The Claw’s inner circle to its outer ring where Bono, ever the pop tart, stands hands outstretched milking the applause.

After teasing with a few bars of the other Fab Four’s ‘Here Comes The Sun’, U2 launch into versions of ‘Beautiful Day’ and ‘Elevation’, which have Croker pogoing like it’s 1977. There are further reminders of their punk origins when ‘Vertigo’ detours through The Ramones’ ‘Do You Remember Rock ‘N’ Roll Radio?’ and ‘Sunday Bloody Sunday’ segues into The Clash’s ‘Rock The Casbah’.