Lisa Rinna felt the underside of Donald Trump's boot last night on 'Celebrity Apprentice,' and the bad blood between her and Star Jones, the mastermind behind her defeat and the first to throw her under the bus during the episode, could not be any uglier.

"Since the show wrapped, there's been no love lost between Star and Lisa," one of the contestants tells me. "Things got so ugly between them that NBC legal had to get involved."