Another day, another drink thrown by Lindsay Lohan.

Only this time, it happened in NYC and the target was supermodel Jessica Stam, although no one is quite sure why.

L.L. was at the Wildfox party at 1Oak when she left and later returned.

“She was going to move to a table where Jessica Stam, her boyfriend, Aaron Voros, and Sean Avery were sitting, but then she freaked out,” a source tells me.

And that’s when a cocktail was thrown…

“She threw a drink at Jessica,” a source tells me. “She seemed upset about Aaron, but they don’t know each other.”

After reportedly launching a cocktail for no apparent reason, she then tried to get Jessica and her group kicked out. Security obviously wouldn’t agree, so Linds left shortly after.

“She wasn’t drinking so I don’t know why she was acting so bizarrely,” a source tells me.

The next morning, L.L. headed off to Cannes, but not before doing a strange video interview in the car on her way to the airport.

Her odd behavior was still raising eyebrows when she touched down in France. While leaving a yacht party hand-in-hand with a mystery man, Linds managed to take yet another tumble and wound up on the pavement.

But LiLo may have to cut her Cannes trip short.

She’s got a DUI progress hearing scheduled for Thursday, and the judge will decide today or tomorrow whether she has to attend in person.

Source