Samantha Ronson seems to be following in the footsteps of ex-girlfriend Lindsay Lohan. The 33 year-old DJ and producer was pulled over for speeding while driving home from Vegas yesterday, and eventually arrested for DUI...at 10:30 in the morning!

If she were anywhere other than Vegas, I'd say Sam must have a serious drinking problem to be that hammered that early in the day, but those casinos are like black holes with booze. You go inside; there are no clocks, windows, or last calls...sometimes you stumble out onto the street and realize it's noon.

No word yet on just how over the legal limit Sam was, but sources say she refused an initial test and was transported to a nearby station where she was found to be too tipsy to drive and placed under arrest.

(Photo: Fame)