I admit that when this job landed on my desk I had no idea how to even pronounce Avicii nevermind know what it was or sounded like. Five seconds online sorted that out. Of course I'd heard Avicii.
For this artwork I got a flat version of the London show art and was asked to make it work for Dublin. O2 provided nice high res jpg of Dublin and I fairly painstakingly put it together. Of course the next day I got the layered artwork from London but sure the work was done by then.