Nicole Richie and Paris Hilton are a bit too tied together at the hip. Paris Hilton received a DUI and was arrested this summer. Today we here that Nicole Richie was arrested and booked at 4:50am for the same offense.

The booking sheet listed Richie at 5′1″ and 85 pounds….and to think she has put on weight of late.

How drunk was Nicole?

We’re told two motorists spotted her SUV going the wrong way on the 134 Freeway in Burbank. The drivers called 911.

Law enforcement officers tell TMZ Nicole Richie admitted she had taken Vicodin and smoked pot.

A preliminary alcohol screening device revealed that Nicole was not under the influence of alcohol.

This is not Nicky’s first brush with the law either.

This is not the first brush Richie has had with substance abuse. In 2003, she pled guilty to heroin possession. The charges were dismissed after she completed the terms of her probation.