An altered version of the song was mixed with "Miss Murder" for inclusion in the director's cut of its music video. The number in the song title, '12/21', could be a reference to December 21, the winter solstice, which has the longest night of the year.
The song's altered version was combined with "Miss Murder" for inclusion in the director's cut of its music video. The number '12/21' within the song title could be a symbolic reference to December 21st, which is the longest night of the year.