After the dissolution of the hippies movement of the 1960´s into many directions under the pressure of establishment and commercialism started to emerge new bands that were negating the flower era. Frank Zappa started to produce music with sarcastic texts that was filled with electronic experiments and often music anarchism. These bands wanted to be apart the rock and pop mainstream. They were spiritually close to the European movement Rock in Opposition. The New San Francisco Underground did not gain any attention in the US but it became a cult in Europe
The Residents are probably the best know anonymous band in the world. They wore the eyeball heads during their performances in order to conceal their identity. Interprets that recorded with them never met them in the studio, they report on getting instructions via walkie-talkie. The Residents were new in using the recording studio as a music instrument by itself.