Throughout all the films in the "Nightmare on Elm Street" series, Freddy's potential victims would hear the "Freddy Krueger Song" before he attacked them.

The song is a parody on the words of the kiddies nursery rhyme "One, Two, Buckle, My Shoe."

But the opening words of Freddy's song are "One, Two, Freddy's coming for you," which is a warning that Freddy is near or ready to attack.

This song is sometimes known as Freddy Krueger's theme song. In the movie it is sung by little children dressed in white party clothes, who are presumed to be the past victims of Freddy in his former life.

In spite of the fact that it is a parody, the Freddy Krueger song is quite haunting and ominous.

These are the full lyrics:

"One, two, Freddy's comin' for you. Three, four, better lock your door. Five, six, grab a crucifix. Seven, eight, better stay up late. Nine, ten, never sleep again."

In A Nightmare on Elm Street 5: The Dream Child, Nine, Ten ends with "He's back again", in a reference to Freddy's revival.

The first film of the "Nightmare on Elm Street" franchise was released in 1984, and was written and directed by Wes Craven,

It was set in the fictional Midwestern town of Springwood, Ohio The plot is about several teenagers who are stalked and killed in their dreams by the character, Freddy Krueger. The teenagers are unaware of the cause of this strange phenomenon, but their parents hold a dark secret from long ago.

Craven produced the first movie with an estimated budget of just $1.8 million. It was an instant commercial success, recovering its cost in the first week. It received rave critical reviews and went on to gross over $25 million in the US alone.

It spawned a franchise consisting of a line of sequels, a television series, a crossover with "Friday the 13th", and various other works of imitation; a remake of the same name was released in 2010.

Critics have praised the film's ability to transgress "the boundaries between the imaginary and real", toying with audience perceptions.

The Freddy Kreuger song has been a critical element in maintaining continuity in the series.

Have you seen any – or all – of the movies? Which was your favorite?

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