We've finally learned the secret of LINDSAY LOHAN and her magic water bottle! There was a packed house at Les Deux on Feb. 28 for the offi cial turntable debut of "DJ Lindsay Lohan." It seemed like everyone who is anyone in L.A. turned out to support LiLo as she shared spinnin' duties with celeb DJ STEVE AOKI. And we've got to say, Lindsay put together a pretty bangin' mix - everything from rap to Fall Out Boy and Incubus.

Lindsay kept running between the DJ booth and her VIP table to dance with her friends. She was drinking from a water bottle and had her Parliament Lights practically welded to her hand. Ah, but we couldn't help notice a blonde-haired male friend was intermittently ducking behind the couch and pouring vodka into Lindsay's water bottle! How many days sober Lindsay?