Sin (also known as Halo 4) is Nine Inch Nails' third single, released on October 10, 1990, and final from their debut album Pretty Hate Machine. It contains three remixes of the title track as well as a Queen cover. In addition to the two CD configurations shown below, it was also released on various vinyl configurations and sizes: the US release features all tracks on 12" vinyl with red/purple artwork, while the UK had a release on 9" vinyl (excluding the Short remix) and 7" (excluding Long and Dub), both with black artwork.
A "Sin (Short)" - 4:19
A "Sin (Long)" - 5:50
Halo I-IV is a limited edition vinyl box set released by Concord/Bicycle Music for Record Store Day in November 2015. It contains the domestic versions of the 12" singles for Sin, Head Like A Hole and Down In It on 120 gram vinyl, as well as the original version of Pretty Hate Machine on 180 gram vinyl. None of the music in this set is remastered.