The "Not Myself Tonight" singer was arrested at 2:45 a.m. and booked on a misdemeanor charge of public intoxication. Rutler, 25, was arrested for driving under the influence.
The L.A. County Sheriff's Department set Rutler's bail at $30,000.
Pals of the Burlesque star spoke up in a recent issue of Us Weekly about Aguilera's increasingly rowdy, drunken antics.
"Her friends are fed up," one source said of the star. "She's really spiraling. I would be shocked if she's not in rehab in the next month or two."