Backmasking has been used as a
recording technique since the 1960s. In the era of
magnetic tape sound recording, backmasking required that the source
reel-to-reel tape actually be played backwards, which was achieved by first being wound onto the original takeup reel, then reversing the reels so as to use that reel as the source (this would reverse the stereo channels as well). allow easy reversal of audio from digital sources. Backmasking was also parodied in a 2001 episode of the television series
The Simpsons titled "
New Kids on the Blecch".
Bart Simpson joins a
boy band called the Party Posse, whose song "Drop da Bomb" includes the repeated lyric "Yvan eht nioj".
Lisa Simpson becomes suspicious and plays the song backward, revealing the backmasked message "Join the Navy", which leads her to realize that the boy band was created as a subliminal recruiting tool for the United States Navy. In the episode titled "
Lisa the Vegetarian" Lisa Simpson is told by
Paul McCartney that playing his 1970 song "
Maybe I'm Amazed" backwards will reveal "a recipe for a really rippin' lentil soup". A modified version of the song plays in the final scene, then over the closing credits of the episode; when played backwards, McCartney can be heard reciting the recipe in the song. One of the backwards snippets says, "Oh, and by the way, I'm alive", a reference to the "
Paul is dead" urban legend. Backmasking has been used by
heavy metal bands to deliberately insert messages in their lyrics or imagery. Bands have utilized Satanic imagery for commercial reasons. For example,
thrash metal band
Slayer included at the start of the band's 1985 album
Hell Awaits a deep backmasked voice repeatedly chanting "join us".
Cradle of Filth, another band that has employed Satanic imagery, released a song entitled "Dinner at Deviant's Palace", consisting almost entirely of unusual sounds and a reversed reading of the
Lord's Prayer. Artists often use backmasking of sounds or instrumental audio to produce interesting sound effects. One such sound effect is the
reverse echo. When done on tape, such use of backmasking is known as
reverse tape effects. Backmasking has been used for artistic effect by
Missy Elliott ("
Work It",),
Jay Chou ("
You Can Hear")
At the Drive-In ("
300 MHz"),
Klaatu ("
Anus of Uranus"/"
Silly Boys",) and
Lacuna Coil ("
Self Deception") A related technique is to reverse an entire instrumental track.
John Lennon originally wanted to do so with "
Rain", but objections by producer
George Martin and bandmate
Paul McCartney cut the backward section to 30 seconds. Soul duo
Gnarls Barkley released a companion version of their album
The Odd Couple, an instrumental album called
elpuoc ddo eht, consisting of the original album, fused into a single 38:44-long track, and reversed. This album can be legally obtained by owners of the original, as it is meant to complement it, and be a resource to samplers. The
B-side of the 1966
Napoleon XIV single "
They're Coming to Take Me Away, Ha-Haaa!" is a reversed version of the entire forwards record, titled "!aaaH-aH ,yawA eM ekaT oT gnimoC er'yehT". The forward version reached #3 in the US charts and #4 in the UK. In
"Weird Al" Yankovic's "Nature Trail to Hell", from 1984's
"Weird Al" Yankovic in 3-D, Yankovic's backmasked voice declares that "
Satan eats
Cheez Whiz". "
Down Home Town" begins with a voice twice repeating (in reverse) "Face the mighty waterfall". And the opening instrumental "
Fire On High" contains the backmasked message "The music is reversible, but time is not. Turn back! Turn back! Turn back! Turn back!" (). In 1983, ELO released an entire album,
Secret Messages, in response to the controversy. Between the songs "
The Trooper" and "Still Life" is inebriated drummer
Nicko McBrain doing an impression of
Idi Amin Dada: "'What ho', sed de t'ing wid de t'ree bonce [said the thing with the three heads]. Don't meddle wid t'ings you don't understand," followed by a
belch.
Prince's controversial song "
Darling Nikki" includes the backmasked message, "Hello, how are you? I am fine, because I know that the Lord is coming soon."
The Waitresses' 1982 EP
I Could Rule the World if I Could Only Get the Parts included a backwards masking warning on the cover and a message masked within the song "The Smartest Person I Know": "Anyone who believes in backwards masking is a fool." Some messages chastise or poke fun at the listener who is playing the song backwards. One such message was included by "Weird Al" Yankovic in "
I Remember Larry", from the 1996 album
Bad Hair Day, on which Yankovic lightly chastises the listener with the backmasked remark, "Wow, [you] must have an awful lot of free time on your hands". Similarly, the
B-52's song "Detour Through Your Mind", from the 1986 LP
Bouncing off the Satellites, contains the message, "I buried my parakeet in the backyard. Oh no, you're playing the record backwards. Watch out, you might ruin your needle." A similar message comes from the Canadian band
Frozen Ghost from their 1987 self-titled debut album: "You are ruining your needle!" Meanwhile,
Christian rock group
Petra included in their song "Judas' Kiss", from the 1982 album
More Power to Ya, the message, "What are you looking for the devil for, when you ought to be looking for the Lord?"
Bloodhound Gang's 1996 controversy-begging track "Lift Your Head Up High (And Blow Your Brains Out)" mocked the Judas Priest controversy directly, and included the backmasked phrase "Devil child, wake up and eat
Chef Boyardee Beefaroni". The band
Mindless Self Indulgence released a song titled "Backmaskwarning!", which contains the forward lyrics "Play that record backwards / Here's a message yo for the suckas / Play that record backwards / And go fuck yourself". The backwards messages in the song include, "clean your room", "do your homework", "don't stay out too late", and "eat your vegetables". On the same album, a backwards message can also be heard in "Harry, You're a Beast" with Madge saying, "Don't come in me, in me" repeatedly before she starts crying. In at least one bootleg version of the album, these words are very clear. Another example is found in
Roger Waters' 1992 album
Amused to Death, on which Waters recorded a backward message, possibly critical of film director
Stanley Kubrick, who had refused to let Waters sample a breathing sound from
2001: A Space Odyssey. The message appears in the song "
Perfect Sense Part 1", in which Waters' backmasked voice says, "Julia, however, in light and visions of the issues of Stanley, we have changed our minds. We have decided to include a backward message, Stanley, for you and all the other book burners." On the other hand, backmasking can be used to
censor words and phrases deemed inappropriate on
radio edits and "
clean" album releases. For example,
the Fugees' clean version of the album
The Score contains various backmasked
profanities; When used with the word "shit", this type of backmasking results in a sound similar to "ish". As a result, "
ish" became a
euphemism for "shit". In
Britney Spears' 2011 song "
Till the World Ends", Spears says "if you want this good shit". However, on the official version, "shit" is reversed, creating the "ish" sound; therefore, the official version says "if you want this good ish". Backmasking is also used to censor the word "
joint" in the video for "
You Don't Know How It Feels" by
Tom Petty, resulting in the line "Let's roll another tnioj". ==Accusations==