First impressions do not augur well for the sixth album from Britain's most indefatigable female pop group. There's that Heat magazine headline of a title, a clumpy, cynical, girl-power single which sounds like a trailer for What Not to Wear, and a general transition from crisp modernity towards self-consciously grown-up, Duffyesque soul. Indeed, half of it is as colourless as promised, but the half credited to Swedish songwriter/producer Klas Ahlund (Britney, Robyn) is unflaggingly terrific. You On a Good Day sets 90s R&B vocals to a Supremes backbeat, Side Chick is wry romantic pragmatism undermined by the melancholy realisation that second-best isn't really enough, Every Heart Broken gathers droll murder metaphors towards an immense, key-changing chorus, and Truce is their tenderest ballad yet. Sugababes have always lacked a reliably sympathetic ally who can pull the best from them: a Xenomania to their Girls Aloud. In Ahlund, they might just have found one.