Pete and Kate in rehab together  —  KATE MOSS and junkie lover PETE DOHERTY went to a drug rehab unit together yesterday to battle their demons side by side.  —  The supermodel and the shambolic rocker checked secretly into the discreet Capio Nightingale Hospital just half a mile from her home in North West London.

Paris Hilton Sues to Shut Down Web Site  —  Paris Hilton on Monday slapped a federal lawsuit on the Web site that's displaying private photos, videos, diaries and other possessions she had kept in storage, the Associated Press reports.  —  Parisexposed.com, which the 25-year-old Simple Life star hopes to shut down, launched Jan. 23.

J. Lo defends TomKat and Scientology  —  Plus: At least Britney's boyfriend believes in buying underwear  —  Jennifer Lopez has jumped to the defense of TomKat's wedding — and their sometimes controversial religion.  —  "[The wedding] was a great celebration of their love," J. Lo told a Florida TV station.

Diddy Takes Sienna Home  —  Diddy seemed to have been caught off guard when he was spotted entering a New York hotel Sunday morning with Sienna Miller.  —  Diddy, father of newborn twins, was spotted dropping off Miller at her NYC hotel this morning after a rumored night of partying together in the city.

Di's life: Picking up some old threads  —  Women's cable network WE dropped big bucks on four gowns owned by Princess Diana two months before she died.  It planned a national PR tour called "Dresses to Di For."  —  Needless to say, the tour was scrapped when she lost her life in a Paris car crash.

The GOP's Mr. Right?  Not Rudy, say insiders  —  Rudolph Giuliani may have a tough time getting support from his own party should he announce that he's running for President, a high-level Republican says.  —  "He's the antithesis of the core values which the party stands for," claims the source.

Sienna's Factory Girl premiere is pants  —  Sienna Miller raised a few eyebrows at the premiere of her new movie Factory Girl in New York.  —  She started the evening in a glittery white mini-dress covered in tassles - but for the party afterwards she changed into a black top, black boots …

SHORTER LEASH  —  MISS USA Tara Conner is out of rehab, but Donald Trump and the Miss Universe Organization are keeping a tight leash on her.  Friends say the beauty queen has moved from her Trump Tower pad to a bigger apartment farther uptown, which she now shares with a chaperone.

Miss Oklahoma Is Crowned Miss America  —  For the second year in a row, Miss Oklahoma was named Miss America when aspiring Broadway star Lauren Nelson was crowned on Monday.  —  "I watched Miss America as a little girl since I was 2 years old and never in my wildest dreams did I ever …

Naked With a Horse!  —  Harry Potter aka Daniel Radcliffe will soon begin his role in the London production of Equus.  Harry will play a boy who has issues with horses and likes blinds them or something.  No, horse/boy sex does not occur.  Harry does have to get all naked though.  He also needs a tan.

CHP: Brandy Should Be Charged in Fatal Crash  —  The California Highway Patrol has concluded its investigation into the Dec. 30 crash involving Brandy - and is recommending that the R&B singer be charged with a misdemeanor count of vehicular manslaughter without gross negligence, according to CHP spokesman Leland Tang.

What James Brown Wanted From Eddie Murphy  —  Eddie Murphy may have modeled his award-winning performance in "Dreamgirls" in part on James Brown, but he tells Access Hollywood he was asked to go one step further by the late Godfather of soul.  —  "James Brown said to me years ago 'If they ever do my life …

Dancing for Beyonce Is No Dream, Girl  —  TMZ has learned that dancers working on Beyonce's latest videos are being low-balled on their salaries in order to make the videos on the cheap.  —  Sources tell TMZ that the music diva is shooting several music videos in L.A. this week, which we're told she is financing, not her label.

FUNNY THING IS, BRITNEY IS THE PITIFUL PARENT  —  HE'S the fertile layabout who won fame for giving a face to the creature he most resembles - the 6-foot sponge.  —  Who knew that Kevin Federline would evolve into father of the year?  —  We have a national crisis on our hands, America.

Eddie Murphy Frightened of Scary Fans  —  Even though his well-trained PR rep is dutifully denying any such thing, the New York Daily News has the inside scoop on why Eddie Murphy was a no-show at the "Dreamgirls" premiere in London last weekend.  Predictably, it has a little something …

Jennifer Lopez Defends Scientology  —  Though not a practitioner herself, Jennifer Lopez spoke up on behalf of Scientology - and revealed that her father, David Lopez, is a follower - during a weekend interview with a Miami TV station.  —  "My dad has been a Scientologist for 20 years," Lopez, 37, told South Florida's NBC6.

Oy Vey!  She Did It Again!  —  • What?  —  We spotted Britney outside the Chateau Marmont, and we couldn't help but notice the Star of David dangling from her neck!  Could she be renewing her intensely spiritual exploration of the Kabbalah?  Or are we just seeing the influence of Isaac Cohen at work?