For many celebrities, getting behind the wheel isn't even part of daily life. Drivers wait outside their homes. SUVs glide them from appointment to appointment. It's all carefully managed and controlled. But for Britney Spears, the act of driving herself is something much deeper than convenience. And after her recent DUI arrest in the Los Angeles area last week, that reality is becoming painfully clear. The 44-year-old pop superstar, who built a global empire on hits like Gimme More and Toxic, reportedly has no interest in handing over the keys - even though she could easily afford to.