A Glimpse of The Unforgettable Fire (1984) by U2

Lighting the blue touchpaper as U2 push the edges.

With The Unforgettable Fire, the real U2 arrived. Their first three albums - Boy, October, and War - made an impact but U2 were finding their feet. After Fire, The Joshua Tree would sell by the truckload. Fire was required first to light the blue touchpaper.