Isaiah Washington — A Terror on the Set?  —  Isaiah Washington got into it big time with Patrick Dempsey on the set of 'Grey's Anatomy.' Now TMZ has learned that Washington has had other on-set blowups.  —  A simmering feud between the two actors bubbled over last week …

Clooney has a new Tamara  —  Has George Clooney been taking another dip in the dating pool?  —  A source tells me the handsome actor has been enjoying a fling with British demi-celebrity Tamara Mellon.  Or at least, that is the impression she has been giving pals.

Shattered Paul McCartney plans to unleash damning evidence in his bitter divorce battle with Heather Mills.  —  Hurt by her leaked court papers claiming he was a violent, drug-taking drunk, Macca has enough ammunition to destroy the beauty's lies — and prove that it was HER who was the violent nightmare in their four-year marriage.

Are You Ready London????  —  In addition to Perez's upcoming trip to the British capital this week, look who else is in town!!  —  Miz Jessica Simpson, looking stylish and refreshed after a long flight, is snapped by the paparazzi arriving at London's Heathrow airport this weekend.

Britney's Tot — Sutton P. or Jayden J.?  —  So just what did Britney Spears and Kevin Federline name their latest child?  It was widely reported that the baby had been named Sutton Pierce Federline, giving him the same initials as his big brother, Sean Preston.

IS BRITNEY'S BABY A GIRL???!!!  —  "Fake out the media?  Good idea; let's do it!  Whadaya think, Sean P?"  —  So the boss man over here at X17 came up with this theory just after the birth of "Sutton Pierce," as Britney and Kevin's second child has been called ... He thinks Britney …

Kate Moss pregnant with Doherty's child?  —  Kate Moss is pregnant with Pete Doherty's baby, according to a report today.  —  Doherty's uncle Phil Michels claims that the singer called him from Italy, where he is touring with Babyshambles, to share the news.

JULIA ROBERTS' DIGITAL DENTISTRY  —  You'd think a star as big as Julia Roberts could afford some porcelain crowns.  —  The new issues of People and Us Weekly both feature a photo of Roberts and George Clooney mugging at the American Cinematheque Award ceremony honoring the latter.

Deadwood's Molly Parker Has a Boy  —  Deadwood actress Molly Parker and her husband, Matt Bissonnette, have welcomed their first child, son William Strummer Bissonnette, PEOPLE has learned exclusively.  —  William, who was born last Friday in Los Angeles, weighed in at 8 lbs. and 12 oz.

Jessica Simpson Pinpoints When Marriage Ended  —  Simpson at the Employee of the Month premiere  —  Jessica Simpson says she realized that her marriage to Nick Lachey was over when he opted out of accompanying her to Africa on a charity trip in October 2005.

Hugh Jackman Answers Your Questions!  —  The Prestige star opens up on everything from his family down to his breakfast  —  You asked, Hugh answered!  When PEOPLE asked readers to submit questions to Hugh Jackman, he was game.  The Aussie actor, 38, who plays a magician in the period film …

Cary Elwes, Wife Expecting a Baby  —  Cary Elwes and his wife, photographer Lisa Marie, are expecting their first child together, the actor's rep tells PEOPLE exclusively.  —  The baby is due in the spring, according to Elwes' rep, Karen Samfilippo.  —  Elwes has appeared in more than 50 films …

Sharon Stone Won't Put Away Her Nipples  —  As much as we may want her to, it looks like Sharon Stone just isn't going to let go of the belief that she is still sexy.  —  With Basic Instinct 2, Sharon Stone proved to everyone that she's past her prime, and then some, but it looks …

Minnillo BlahNick: It's Getting VERY Serious!  —  Are Nick & Vanessa ready to take the next step in their relationship?  —  The answer is a resounding YES!  —  Friday night was a very special evening for Lachey, PerezHilton.com can exclusively reveal.  —  His brother, Drew Lachey …

Suri Cruise: Vanity Fair Outtakes  —  Check out all of the non-scanned Suri Cruise pictures from Vanity Fair!  SOOOOOOO CUTE!!!!!  —  If you missed the debut last month, these were the very first official Suri Cruise pictures from October 2006 issue of of Vanity Fair.

Shiloh Jolie-Pitt Resurfaces  —  It's about time.  After Maddox and Zahara both made appearances in the last couple of weeks in India, Shiloh had to eventually show her pretty little face.  Mother and daughter were on a stroll through the streets of India with a guard in tow.  Cute.

Bust-ed!  — Celebrity Nip Slips  —  They're accidental, yet beneficial — the most powerful publicity generators short of XXX sex tapes.  We're talking about those chesty celebrity peekaboos caught on film, or "nip slips" to all you seasoned perverts out there.