The main riff to "Enter Sandman" was conceived by Kirk Hammett and James Hetfield originally had much darker lyrics set to the track, which were re-written until settling on the final version ...

Just over 20 years ago (July 29, 1991), 'Enter Sandman' was the first single released ... even the most particular details, especially the lyrics, in an effort to make the song perfect.

No, those weren't the correct lyrics for Metallica's "Enter Sandman," but apparently they are a common misinterpretation, since that song was found to have the most commonly misheard lyric among ...