Quick story. This video is the second part of the performance, and right off hand I can’t remember what they played first. But, they’re on some TV show and before they play, the host of the show goes to announce them and says something about another band who was supposed to play that night, and was a favorite of the show, had broken up. So to fill their spot was a young AC/DC, who were, well… AC/DC.
When their amps were first turned on you could hear the static coming from them, and the host said something about how that didn’t sound right. Apparently he had never heard a high octane rock band before. When they started to play, the audience had this look like “what the fuck is this shit?” It’s hysterical.