666 (The Apocalypse of John, 13/18) is a double album by psychedelic/progressive rock group Aphrodite's Child, released in 1972. Ostensibly an adaptation of Biblical passages from the Book of Revelation, the album is the most critically acclaimed Aphrodite's Child album. It was also the group's last album, due to internal tensions during the recording process and conflict with the record company. By the time it was released, the band had already disbanded and its members begun working on solo projects. The concept for 666 was created by Vangelis and film director Costas Ferris, who served as the project's lyricist. Ferris cited as influences the nonlinear narrative style of films Intolerance, Rashomon, Citizen Kane and The Killing, as well as The Beatles' Sgt. Pepper's Lonely Hearts Club Band and The Who's Tommy. The central concept is a countercultural interpretation of the Book of Revelation, in which a circus show based on the apocalypse performs for an audience at the same time that the real apocalypse takes place outside the circus tent, and at the end the two merge into one. Ferris described the result as a "concept book", and stated that he intended for the narration to be looser than Tommy, but more rigid than Sgt. Pepper. The band commenced work on the album at the Europa Sonor studio in Paris in late 1970. They took just over three months to record it and finished in early 1971. The overall cost of album's recording was estimated as $80,000 or $90,000. The recordi