We didn't know how lucky we were. In five short years, we've fallen from the Sugababes and Girls Aloud to the Saturdays and Little Mix.
The debut from last year's X Factor winners is packed with vague, uplifting homilies about staying strong, being in love and so on. The main duty of pop is to be catchy, and it's a duty which DNA mostly shirks miserably. T-Boz from TLC, who guests, must be wondering how girl pop went from CrazySexyCool to BoringSexlessNaff.