Lohan Enters Rehab  —  TMZ has confirmed that Lindsay Lohan has checked herself into rehab.  —  In a statement issued through her rep, Leslie Sloane Zelnik, Lindsay says "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."

Federline: Expect a Different Kevin in '07  —  Kevin Federline says his self-deprecating Super Bowl ad is a sign of a "new Kevin" for 2007 - one who's upbeat and determined to change his image.  —  "This is just the start of other things to come - '07 is a completely life-changing experience for me …

No sects please, we're British  —  Ivy league ... Posh and Katie Holmes and, right, Tom helps Posh outside Ivy  —  TOM CRUISE is trying to recruit the Beckhams to the Scientology cult — but Victoria has told him: "Hands off our cash".  —  The Hollywood superstar is obsessed with the wacky religion …

Knight Speaks Out About Gay Slur  —  For those who have followed the Grey's Anatomy "faggot" controversy since it began last October, one of the recurring questions has been: Just what would it take to get the mainstream media to cover the use of an anti-gay slur?

Britney's ball invite turns into a pumpkin  —  Plus, Sharon Stone hands co-star a basic beating on set  —  Britney Spears won't be going to a fabulous European ball because her former best friend Paris Hilton will be there.  —  The partying heiress is attending the super-elegant Vienna Opera Ball …

Jennifer And Ben Know What Really Counts  —  Ben might have lost best supporting actor to Eddie Murphy but he didn't seem to let that put a damper on his night.  He and Jen looked like they were in good spirits at the NBC/Universal party.  In fact, Jen says it's easy to keep things in perspective when you're a mom.

Kim Kardashian: I'm Not Shopping the Sex Tape  —  In an exclusive conversation with TMZ, Kim Kardashian claims that she has nothing to do with the sale of a raunchy sex tape ... but she isn't denying it exists.  —  "There is no tape being shopped," Kim said.

Us Exclusive: Britney's Rep Calls Pregnancy Rumor "Absurd"  —  Britney Spears' manager, Larry Rudolph, tells Us Weekly exclusively that "Britney is not pregnant," calling a recent tabloid report claiming that Spears is expecting "absurd."  —  Rudolph tells Us that he believes that the …

Fergie and Josh Work It Out  —  Looks like the couple that gets fit together stays together as Black Eyed Peas singer Fergie and her hunky boyfriend actor Josh Duhamel (Las Vegas) enjoy a vigorous work-out in Santa Monica, Ca.  The lovebirds jogged, climbed stairs, did aerobics and then still …

Foxy Brown gets good probation report  —  NEW YORK - Foxy Brown, sentenced to probation and anger management classes for a fight in a nail salon, left court smiling Wednesday after hearing "an excellent report from probation."  —  Brown, 26, said the sentence has been good for her "because probation forces you into structure.

Hef robs cradle, and he may fill it, too!  —  The answer to Who's Your Daddy just may be Hugh Hefner.  The founder of the Playboy empire has told us he's considering becoming a father again - at age 80.  —  "I wouldn't say that there's a plan, but there has certainly been a conversation," the centerfold sovereign said.

Oscar race lacks best-picture favorite  —  LOS ANGELES - The Golden Globes, trade unions, film critics and just about everyone else in Hollywood have weighed in on 2006's best film achievements, helping to solidify the Academy Awards picture — and muddy it up a bit, too.

Sienna Miller and Josh Hartnett Get Cozy  —  New couple alert?  Sienna Miller and Josh Hartnett certainly seemed cozy at Hollywood's Chateau Marmont on Tuesday night.  —  Miller, 25, and Hartnett, 28, sat side-by-side on a couch in the hotel restaurant's living room area …

Blige and hubby split?  No Kendu  —  Mary J. Blige and husband Kendu Isaacs appeared together at Golden Globes parties in Los Angeles Monday, cooling talk that the couple had privately decided to split.  —  Pals say the singer and producer have reconciled after a tense period …

David Alan Grier To Host NBC Comedy Series  —  NBC has ordered six one-hour episodes of "Thank God You're Here," a new improvisational comedy series from the producers of American Idol.  The show will be hosted by David Alan Grier and presided over by judge Dave Foley.

Britney Goes For Burgers  —  Britney was in high spirits today as she lunched at the West Hollywood diner Mary's with two pals.  In fact, we haven't seen Britney looking quite so happy in a while and we like it!  Maybe Isaac's having a good effect on her?  Or maybe it's the nachos ...