DIANE'S CELEBRITY DIRT - THURSDAY, JAN. 18

*Lindsay Lohan checked into rehab. Lindsay issued a statement saying, "I have made a proactive decision to take care of my personal health,. I appreciate your well wishes and ask that you please respect my privacy at this time." Lindsay is only 20 so I think it's good that she's getting help now before she completely destroys her life and career.

*Jennifer Garner looked fabulous in white at the Golden Globes Monday night. How did she lose the baby weight? Jennifer said she got back on the treadmill and stopped eating muffins and bagels (that's no fun!)

*A rep for Britney Spears denied that Brit is pregnant with her 3rd child. That's a good thing--she's never home with the first two....

*The auditions continued Wednesday night on American Idol. Simon was extra cranky--he said Seattle was the worst city for auditions. He was really mean to a contestant named Kenneth, making fun of his looks. Calling the guy a "bush baby" was uncalled for, Simon! Simon was on Oprah's show yesterday and he said he doesn't think Taylor would have won if he didn't have gray hair.

*Is Cameron Diaz stalking Justin Timberlake? She reportedly followed Justin from party to party after the Golden Globes and got into a 45-minute fight with him at Prince's party after Justin was spotted with Jessica Biel. Cameron, don't make yourself look desperate! I know it's hard to get over a breakup, but you are a talented, attractive, succesful woman--move on with your life! Meanwhile, Cameron moved back in with her parents for some T.L.C.

*Good news if you like Rachael Ray--and not such good news if you don't. Rachael's talk show was renewed for 2 more seasons.