Samantha Ronson, Lindsay Lohan's ex, busted for DUI

Samantha Ronson, DJ and ex-girlfriend of Lindsay Lohan, was arrested early Monday (Aug. 1) morning outside Baker, Calif., on suspicion of driving under the influence.

According to TMZ, Ronson was driving her black Porsche home from Las Vegas when she was pulled over for speeding. She apparently failed a field sobriety test and was placed under arrest after refusing to submit to a breathalyzer test.

She eventually gave in and, reports TMZ, blew over the legal limit.

Ronson DJ'd Sunday night at Vegas's Palazzo hotel. As of this writing, there's no mention of the arrest on Ronson's Twitter feed.