Lindsay Lohan got a special surprise for her 24th birthday when a waitress punched her in the face.

Lindsay was celebrating her birthday at the Voyeur nightclub in L.A. when the waitress served her a knuckle sandwich for no apparent reason.

The attack came out of the blue, but according to Us Weekly magazine, the server was upset over the attention Lohan was giving to a man.

According to a source for the magazine: "The waitress has a history with Doug Reinhardt, and Lohan was hanging out with him. She was jealous, and out of nowhere, the waitress punched her in the face!"

Lindsay posted the encounter on her Twitter page.

"A waitress just hit me – punched me for no reason."