'impeach my bush' is a massive record, as ambitious as ever, it's already another classic from peaches and this time calls in cameo roles from the talents of beth ditto, joan jett, josh homme, feist, samantha maloney, darlin' dave catching and brian 'big hands' o'conner. the presence of such guests allows peaches a wider sonic palette than simple electro, and she throws around bristling, crunchy guitars, magnificently on jett's 'you love it'. it's an altogether beefier helping of more of the same, though a closer eye will notice that most of the beats are handled by one greg kurstin, gwen stefani's musical director and architect of the better lily allen tracks. his two songwriting credits - 'tent in your pants', a low-slung hybrid of the neptunes and grandmaster flash, and the goldfrappish single 'downtown' - are squarely aimed at filthifying the mainstream. american