Kevin Federline drinking straight from the vodka and Jagermeister bottles

"He was drinking straight from the vodka and Jagermeister bottles," an onlooker said. "I didn't see him with a drink in his hand that much, but he drank out of the bottles a few times."

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Federline and his group arrived at the club around 11:30 p.m. and had dinner at Tao's Loft before retreating to the club at 1 a.m., says a source. There, Federline started the party with bottles of Jack Daniels, Grey Goose and Jagermeister.

"He was grinding up on a few of the girls."

"He had a flashlight and was shining it on some of the girls around him."