Say what you like about N-Dubz: they know which side their bread's buttered.
Ever since Tulisa emerged as this year's Forces Sweetheart via X Factor, her profile has dwarfed those of her bandmates. Sensibly, therefore, their Greatest Hits has the songbird's chest dead-centre on the cover. The contents? N-Dubz's decent but never mindblowing urban pop features just the right balance of airbrushed aural sugar and lyrical realism to hold the ear of a generation.