It's time for another Thursday edition of Knightlines, celebrity gossip and things you need to know... 

KIM KARDASHIAN wants KHLOE to dump her husband LAMAR ODOM because he's BAD FOR BUSINESS. A source says, quote, "Kim just lit into her about how much Lamar was hurting their bottom line and creating so much negative publicity. Kim can't understand why Khloe hasn't dumped Lamar because he is showing absolutely no desire to go to rehab."

RIHANNA isn't going to let MILEY CYRUS corner the market on twerking. She does plenty of it in her new "Pour It Up" video. She also has some actual strippers in the video.

The "Star" claims NICKI MINAJ hooked up with ZAC EFRON back in July, and he was THE BEST SHE'D EVER HAD . . . and the "National Enquirer" says ELTON JOHN secretly set up LADY GAGA and JOHNNY DEPP to meet, because he thought they'd be perfect together. And by the time it was over, they made plans to hang out again.

Author TOM CLANCY died Monday at the age of 66. The cause of death was not released. Clancy is best known for his Jack Ryan novels, including "The Hunt for Red October", "Patriot Games", "Clear and Present Danger" and "The Sum of All Fears" . . . all of which were made into blockbuster movies. And there's a new one in the works starring CHRIS PINE.

The coroner's report on CORY MONTEITH came out yesterday, and it didn't offer any surprises. Cory died of a mix of alcohol and drugs. He had a blood-alcohol content of .13%, and heroin was found in his system. In the hotel where Cory died, police found two empty champagne bottles and several glasses . . . plus a used hypodermic needle and a spoon with drug residue on it.

After a five-month trial, the MICHAEL JACKSON wrongful death case has come to a close. Yesterday, the jury ruled that AEG Live was NOT liable for Michael's death . . . and therefore didn't owe the Jackson family millions of dollars in compensation.

ROBERT DOWNEY JR.'S 20-year-old son INDIO is in REHAB for prescription painkillers. But his mother . . . Downey's ex-wife Deborah Falconer . . . says he's NOT a junkie. She says, quote, "He was not addicted. He was taking one pill a day. We are hoping to do it the homeopathic way rather than with medications. He's being treated with vitamin supplements and organic foods."