What's in Your Head? is the sixth album by British heavy metal band Diamond Head. This was Diamond Head's second and last album with singer Nick Tart, who would quit in 2014 due to long-distance issues arising when he had moved to Brisbane, Australia. While the previous album was produced by Diamond Head's drummer Karl Wilcox, the band this time worked with producer Dave Nicholls, who has previously worked with name bands such as Slipknot and Stone Sour. This is also the first album to feature guitarist Andy Abberley. Following its release, the band would focus primarily on touring and wouldn't release a full-length studio album till 2016, nearly a decade later. Tatler "had no interest in making a new album", Nick stated about Tatler during an interview in 2014 "he didn't feel the urge."