The song title was also used as the name of a radio show hosted by singer Henry Rollins on Indie 103.1. Rollins stated in Fanatic, his book about the radio show's first run that "Harmony in My Head" is his favorite Buzzcocks song; appropriately, the Buzzcocks' recording kicked off the very first episode of the show. When Rollins relaunched the show after a short hiatus on 27 December 2005, he used a live recording of the same song.
In a 2006 interview with Pitchfork Media, Diggle revealed he had smoked 20 cigarettes to achieve the gruff sound of the vocals.
- "Harmony in My Head" – 3:06
- "Something's Gone Wrong Again" – 4:29