Francesca Eastwood's birthday party at the Bootsy Bellows nightclub in West Hollywood came to a temporary halt Tuesday night when Linsday Lohan showed up and demanded the reality TV star leave posthaste, sources told Us Weekly.

The 25-year-old Mean Girl reportedly tried to throw around what little weight she has left, but only ended up embarrassing herself in front of Clint's daughter and her entourage.

"Francesca was celebrating her birthday with around a dozen friends in a private area when Lindsay came over and started screaming that Francesca should leave," the insider told Us. "She was yelling 'I'm a star, she's a nobody, get her out of here!'"

An attempt to calm LiLo down was rebuffed, and security was ultimately forced to move in to quell the hullabaloo. Lindsay was asked to leave and acquiesced, though not before almost killing someone in the process.

"Lindsay's friend was driving and they sped out and almost hit one of the valet guys," said the gossip mag's mole.

[H/T: Celebitchy, photos via Getty]