Sam Ronson Arrested for DUI Monday Morning

Samantha Ronson throwin’ the peace sign

Samantha Ronson, a singer/songwriter and DJ, but best known for being Lindsay Lohan’s ex-girlfriend, was arrested Monday morning driving back to her LA home from Las Vegas.

Ronson, 33, was pulled over at 10:30 A.M. in her Porsche just outside of Baker, CA, for speeding home after a Sunday night DJ appearance at LAVO nightclub in Las Vegas, on suspicion of driving under the influence.

After failing a field sobriety test, Ronson declined to take a Breathalyzer test and was placed under arrest.  She was then taken to a nearby police station, where it is reported she blew over the legal limit.

Having been apparently cooperative during the entire process, Ronson was released sometime after 5 P.M. ET.

Wondering if she has been in contact much with LiLo?  She always seemed like the one with her head on her shoulders (more or less).  Guess we’ll see!

UPDATE:  Click HERE to see Sam’s mugshot via TMZ.com