LINDSAY SPENDS THE NIGHT WITH RYAN SEACREST!

Geez Linds, way to keep us on our toes!

Last night Lindsay Lohan went to the Chateau Marmont with Ryan Seacrest around 8:30pm, and after two hours the duo headed to H-Wood. Lindsay then left the club around 12:10am with Ryan, and she hid in the back seat of the car, and the two went back to Lindsay's house.

X17 photogs tell X17online exclusively:

"Lindsay was obviously trying to hide from the paps - Ryan didn't seem to care. It was almost as if he were proud to be with Lindsay. Ryan was laughing while Lindsay ducked down behind the seat of the car when they left H-wood."

We can only assume that the two were having some sort of dance party, because they had the music on so loud, the neighbors called the cops! Two officers went inside at 3:30am, and around 4am, Linds went to Ryan's house and stayed there!

Photogs tell X17online exclusively:

"They were obviously partying inside at Lindsay's - the music was SO loud. When the neighbors complained they moved to Ryan's house. It's like they had to continue the party. I couldn't believe I was seeing the two of them together. I don't think Ryan has any idea what he's getting into."

What the heck were these two doing together? And is this another attempt to make Samantha jealous? So many questions!

STAY TUNED - VIDEO COMING SOON!