Justin Bieber has some magnificently expensive cars -- but according to the state of California, he lacks a valid license to actually drive any of them.

TMZ reports that around 4:30AM Wednesday morning, the Biebs was pulled over near his manse in Calabasas, Calif., for blowing through a stop sign in his white Ferrari. And while he wasn't a jerk to the cops or anything, he didn't have a valid Cali driver's license (he was required to get one within 10 days of moving to the state, but he's about two months overdue).

Justin was cited for that and for running the stop sign, and sources say he was then allowed to swap seats with his licensed passenger -- who hopefully wasn't Lil Twist -- and go on his merry way.

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