The Rule 4 - GoGo 70

Today I watched GoGo 70, a 2008 Korean film about the Devils, a Korean soul band of the 60s and 70s. I should probably say "based on" them, because according to the author of a book on Korean rock of that period, the filmmakers consulted him on the historical background and then largely ignored it; the band in the film is "fictional." I'd already suspected that, since when I found a list of