Kendrick Lamar, who calls himself a ‘certified boogeyman’, is a contemporary Dracula guy, wending his way onto the dance floor; he’s someone who ‘wiggled through that sentence’, as he puts it in one of his new songs, then into your subconscious. Lamar’s latest album, GNX, released unexpectedly on Friday, 22 November, is both a music box and a jack-in-the-box in the tradition of ‘Bad Times’: a forum for groovy, spooky, electro-influenced West Coast sensibilities and a meditation on ego death, false humility and braggadocio.