During Christina's darkest period, Britney Spears was dragged to the hospital for observation, lost custody of her children, smashed a paparazzo's car with an umbrella, spent all her late-night hours in drugstores, and spoke in a British accent. She did not, however, get arrested.Christina Aguilera has been arrested, just a few weeks into her dark period. The 30-year-old singer was busted with her boyfriend early this morning in Los Angeles. TMZ reports 25-year-old Matthew Rutler was taken in for driving under the influence and held on $30,000 bail; he was later released on $5,000, according to the AP. Aguilera was booked for public intoxication, which a source tells TMZ meant she was "extremely intoxicated" and "unable to take care of herself." The star was released from custody as soon as she "was able to navigate and think on her own" (she was fingerprinted and placed in a cell) and will not be prosecuted for the misdemeanor, L.A. County Sheriff's spokesman Steve Whitmore told the AP.