Sam Lutfi -- Britney Spears' Dad Threatened to Kick My Ass

Britney Spears' father Jamie Spears sent a text message to Sam Lutfi back in 2007 ... threatening to beat the crap out of him so badly, he'd wind up in the hospital ... so says Lutfi. Lutfi is on the stand in his defamation case against Britney and…

Leelee Sobieski Leighton Meester Leila Arcieri Lena Headey