ET Exclusive: Lindsay's Rehab Reunion  —  Lindsay Lohan's mom Dina dispels rumors about her daughter as we join her on a trip to see the actress.  —  As a Hollywood mom, DINA LOHAN could sit back and watch the frenzy going on around her daughter, but instead, she's choosing to fight …

Johnny Knoxville Separates From Wife  —  Johnny Knoxville's rep confirms to Usmagazine.com that the Jackass star is calling it quits on his marriage.  "They have been separated," Amanda Silverman, Knoxville's rep, tells Us.  —  Knoxville, 35, and his wife Melanie have been married since 1995 …

Katie Holmes: I Love Calling Tom 'Husband'  —  In her first sit-down interview since her November wedding to Tom Cruise, Katie Holmes reports on married life - and, no surprise, the news is good.  —  "I have a husband and children that I adore.  I have a career that I really love.

STARS' EGO TRIPS TRIP UP FLICKS  —  IT'S bad-behavior time on the sets of a trio of movies now being shot.  —  Chris Tucker, the star whose large paycheck and ego have been well-documented, has been demanding script changes in "Rush Hour 3."  —  "He won't come out of his trailer until …

Chapman film: Imagine there's no audience  —  'Chapter' and Vs.: Jaret Leto and Lindsay Lohan star in the controversial movie.  —  John Lennon fans are calling for a boycott of a movie about his killer, Mark David Chapman, even as producers left Sundance without a distributor.

Fergie: I'm Not Engaged - Or Pregnant  —  Fergie wants to set the record straight, again: She and her boyfriend, Las Vegas star Josh Duhamel, are not engaged.  —  "I've heard that I've been engaged probably about seven times, and pregnant, but I've never been either," she told reporters in Miami on Thursday.

Britney Groveling to Get Back with K-Fed?  —  Britney Spears has been making late-night phone calls to K-Fed in hope of a reconciliation, so say several of Kevin's close peeps.  They tell TMZ that Britney's relationship with Isaac Cohen is a ruse to make Kevin jealous.

Patrick Dempsey & Wife Welcome Twin Boys  —  Patrick Dempsey and wife Jillian welcomed twin boys on Thursday, PEOPLE has confirmed.  —  The twins, named Darby Galen and Sullivan Patrick, were born in Los Angeles.  They join 4-year-old sister Talula in the Dempsey household.

Britney, K-Fed Custody Agreement Extended  —  Britney Spears and Kevin Federline will continue to share custody of their two young sons this month, following the terms of a January custody agreement, Federline's attorney confirmed Thursday.  —  Also on 6abc:  —  More Entertainment Stories |

'Don Vito' Margera hit with sex charge  —  GOLDEN, Colo. - Reality television's Vincent "Don Vito" Margera, uncle of "Viva La Bam" star Bam Margera, was ordered Thursday to stand trial on felony charges that he groped three girls at an MTV promotional appearance.

Sienna Kicks Ass in 3" Heels  —  Sienna Miller kicked up her heels yesterday — to let a photog have it!  —  The "Factory Girl" star was headed into a NYC building when she was ambushed by flashes, but instead of her usual smile and duck technique, Miss Miller opted for a camera shove perfected by her ex, Jude Law.

Liz Hurley Likes Shirtless  —  Shirtless guys, that is.  Model-and-actress Elizabeth Hurley looked fantastic as she helped launch the Jordache Spring/Summer 2007 jeans collection at Macy's Herald Square in NYC last night.  And with good reason!  Her upcoming nuptuials with fiance Arun Nayar is right around the corner — next month!

Ashes of Angie's Mom To Be Scattered  —  British tabloid The Daily Mirror reports that Angelina Jolie will take Brad Pitt and her family to scatter her mom's ashes in the Bahamas.  (Marcheline Bertrand, 56, died last week from ovarian cancer.)  —  Their source says: "It was one of her favorite places …

Sam-Whore-A Shows The Goods in Maui  —  Ok so if you're tired of seeing the youthful crotches of the likes of Britney Spears and Lindsay 'Firecrotch' Lohan then how about the used and abused crotch of 35-year old MILF Denise Richards?  I know it's not quite the 'Full Frontal' variety that Brit …

Roseanne's Sara Gilbert Expecting Second Child  —  Roseanne actress Sara Gilbert and her partner, TV writer-producer Allison Adler, are expecting their second child, PEOPLE has confirmed.  —  Gilbert, 32, is carrying the child, according to her rep.  —  Adler, 39, gave birth to their first child, son Levi Hank, in October 2004.

Whitney wants to speed up her divorce  —  ORANGE, Calif. - Whitney Houston wants to fast-track her divorce from Bobby Brown.  The singer, who filed divorce papers in October, requested a default judgment in a document filed on Dec. 28 in Orange County Superior Court.