666 (The Apocalypse of John, 13/18) is a double album by psychedelic/progressive art rock group Aphrodite's Child. It was released in 1972, and was the primary vehicle/effort for the Vangelis project. It had a minor Album Oriented Radio hit in "The Four Horsemen", and a nearly pop hit with "Break". The album was ostensibly an adaptation of Biblical passages from the book of the same name, but was also very experimental in lyrics and composition, including a curious piece of performance art in which Greek actress Irene Papas performs a struggle to chant a mantra while in the throes of hysteria. 666 was created with an outside lyricist, Costas Ferris. The music combines psychedelic and progressive rock with ethnic instruments, choral chanting, recitations, and use of synthesizers and keyboards. The record company, Mercury Records, objected to the double-album length of 666 and the musical experimentation, as well as the track "∞" (infinity), on which a female orgasm is simulated by the.. …