Princes of Darkness. On June 26, 1970, the not yet famous heavy metal band Black Sabbath with its front man Ozzy Osbourne performed in the sold-out Audimax in the Henry Ford Building. After the performance they did what rock bands used to be dreaded for — they trashed the dressing room.
 

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On June 26, 1970, the not yet famous heavy metal band Black Sabbath with its front man Ozzy Osbourne performed in the sold-out Audimax in the Henry Ford Building. The concert was called “The Magic of Black Sabbath.” There are few reports about the concert itself, but after the performance the members of the band did what rock bands used to be dreaded for – they trashed the dressing room.

• “Ärger in der Garderobe (Stress in the Dressing Room),” a brief anecdote noted in the science magazine fundiert on December 10, 2018, marking the 70th anniversary of Freie Universität Berlin (in German)