A song by the band Cradle of Filth. It is known more famously as "That on song that says the Lord's Prayer in a creepy voice when played backwards." The song played backwards can be found on the infamous internet prank "Subliminal Messages." Many find the song more disturbing when played forward than backwards. You can find both versions of the song on YouTube if you don't feel the need to download it.
Person 1: Have you ever heard "Dinner at Deviant's Palace" by Cradle of Filth?
Person 2: Oh, isn't that that one song that says the Lord's Prayer in a creepy voice when it's played backwards?
Person 1: Yeah!
Person 2: Oh yeah! I heard it on that internet prank! It scared the shit out of me!