EXCLUSIVE: Nicole Richie Is in Labor  —  Nicole Richie is giving birth.  —  Joel Madden was spotted walking into the delivery area of L.A.'s Cedars-Sinai Medical Center.  —  He was overheard saying, “She's going to start pushing soon."  —  Bro Benji is also there.

Britney's Last Chance  —  TMZ has learned that Monday's custody hearing could be one of the most important days in Britney Spears' life.  We're told Brit must show and face the judge if she's got any hope of getting her kids back.  Our sources tell us if she doesn't show, or is uncooperative, it could be curtains for her custody case.

Claim: Katie Holmes Signed Contract, $3M a Year Prenup  —  Andrew Morton makes some explosive allegations in his new book, Tom Cruise: An Unauthorized Biography (out Tuesday).  Among them: wife Katie Holmes signed a contract to commit to Scientology and that her father brokered a high-paying pre-nup.

Brit to Cops — “I'm F***ing Hot”  —  Law enforcement sources have told TMZ about the craziness in Britney's house the night she was committed.  It involves profanity, nudity, drugs and wild mood swings.  —  Sources say when the cops showed up, Britney was locked in the master bathroom with Jayden James.

SLY RIPS JANICE'S STEROID ‘LIES’  —  THE self-proclaimed “world's first supermodel,” Janice Dickinson, is a publicity hound who will say anything to get attention, according to her former fiancé, Sylvester Stallone.  —  The star of “Rocky” and “Rambo” is furious because Dickinson …

Jessica Biel Goes Blonde!  Love It or Hate It?  —  STEVE BAGNESS/MATRIX PHOTOS  —  Forget showing off new looks on the red carpet — Jessica Biel debuted her golden new blonde hair today in Heathrow airport in London!  Jessica's gone from her normal highlighted brown locks to a deep brunette earlier …

Jessica Alba Says Pregnancy is ‘Awesome’  —  With fiancé Cash Warren by her side, Jessica Alba can't help gushing about her impending baby joy.  —  “It's awesome,” she told PEOPLE Thursday in L.A. at Glamour magazine's kickoff for V-Day's 10th Anniversary.  “It's the best time ever.

What Happens In Mexico....  Britney Spears returned yesterday from her quick Mexican romp with that pap dude.  They stayed one night and went shopping where BS bought a Gucci knock-off.  Dumb Dumb probably thought it was real.  I bet you the bitch that sold it to her jacked up the price like ten times.

Katharine McPhee, Taylor Hicks Dropped from Labels  —  Fallen idols, indeed.  —  Katharine McPhee — whose self-titled disc debuted at No. 2 (which hasn't gone gold yet despite being released nearly a year ago) — has been dropped by her label, a rep for RCA has confirmed.

Sweeney Tash!  Helena Bonham Carter forgets to wax her lip (or brush her teeth)  —  Oh dear!  Helena Bonham Carter won't be pleased when she sees this close up of herself.  —  The actress looked fab at the premiere of her new movie Sweeney Todd in Leicester Square last night - except for the slight facial hair and yellow teeth.

Good Lord That's a Nice Ass!  —  Kim Cattrall is the luckiest woman on the planet.  Folks, this is her job.  —  Kimmy is actually getting paid to grab Jason Lewis' bare ass.  —  Get the fluffer, stat!

Unknowing twins marry each other  —  LONDON, England (CNN) — British twins who had been separated at birth learned they were related only after they had become husband and wife, a senior British lawmaker said.  The marriage has been annulled.  —  The couple's identities have been protected for legal reasons.

Shar Jackson: K-Fed ‘Happy the Boys Are Safe’  —  Shar Jackson and Kevin Federline  —  Shar Jackson says her ex, Kevin Federline, is holding up well during the ordeal with Britney Spears.  —  “He's good,” Jackson, 31, told PEOPLE on Thursday at the GBK luxury suite in the Beverly Hills Thompson Hotel.