Brittney Spears?who has just reached a temporary child custody agreement with her Fed-Ex?evidently believes that blasting her own music is the best method to drive off paparazzi. The pop star was filmed driving around Santa Monica with the top down while rocking out to tunes that sound suspiciously like new and improved Britney. Watch her crank it up defiantly as the paparazzi pound her with questions about her missing kids. Not surprisingly, the louder the volume, the more extreme the heckling, as snippets of new (supposedly career revitalizing) Brit material are at least as valuable as another crotch shot.