Lollapalooza today is a sleek, reliably well-oiled pop music festival. But it was born of chaos.

Having embraced dance music on 2017's impressive V, they've now pivoted to epic electronic rock in the tradition of their former touring buddies Depeche Mode. It follows a series of line-up changes.

No wonder that Dirk Dreyer, general manager of the AEG -operated venue, is grinning widely as he looks up the result on his ...