TMZ claims that the singer was arrested on a misdemeanour charge at 2.45am, while her boyfriend Matthew Rutler was also arrested for driving under the influence of alcohol.
Sources told the site that Aguilera was "extremely intoxicated" and "unable to take care of herself".
However, they added: "If the driver had not been arrested for DUI, [Christina] would have never been in trouble."
Meanwhile, sources close to the singer have allegedly been trying to get her into a rehab programme 'for weeks'.
