It's pretty well documented that Head was all about the trap that the "Pre-Fabs" found themselves in, and was their attempt to assert a certain cultural relevance at the time by destroying their former image and creating an avant-garde art film in the process. The interesting thing about all this is that their peers in the music community were for the most part not a party to all the talk of them being fake or irrelevant. The Beatles thought they were way cool. Some of the best songwriters of the 60s went out of their way to give them opportunities (I think particularly of Harry Nilsson here, and of course Carole King and Gerry Goffin gave the Monkees some of their best work as well). It was the critics and their audience who really didn't give them a chance.