The truth about rock music?

Pink Floyd: the song 'Sheep' hails a blasphemous version of the twenty third psalm. Elton John: 'I think people ought to draw the line at goats' ('Rolling Stone', '76). The backmasking of Michael Jackson, KISS, John Lennon's 'prophecy' etc. Should the CIA look into it? 'All should come to repentance' (2 Peter: 3;9)