Vocalist Simon Neil described this to NME as a, "black metal reggae song called 'Herex,' which is something that I believe only our band could do."
The fact that Herex is the name of a Gremlin character from the role-playing game Spiral Knights came as news to Simon Neil. "I wanted a title that sounded like those death metal bands from Sweden or Norway," he explained to the BBC. "It was just kind of combining the words 'Her' and 'Ex,' like 'her ex-boyfriend', but now I think that makes it slightly cooler, thinking of a Gremlin from a role-playing game."
David Bowie's "Space Oddity" tells the story of an astronaut who cuts off communication and floats into space. The BBC used it extensively in their coverage of the 1969 moon landing - an odd choice considering the lyrics.