What Tina Wants  —  Tina Fey has rules.  They've guided the 38-year-old writer-comedian through marriage, motherhood, and a career that went into hyperdrive this fall, when her Sarah Palin impression convulsed the nation, boosting the ratings of both Saturday Night Live and her own NBC show, 30 Rock.

Simon Cowell: Britney Spears Is in Awe of Me  —  Britney Spears won over one of America's toughest critics with her string of comeback performances last week: Simon Cowell!  —  As part of a promotional tour to tout Tuesday's release of her new album, Circus, Spears, 26, performed “Womanizer” on Cowell's X-Factor Saturday.

Angelina Jolie shows off her flat stomach proving she's NOT pregnant … Repeated denials have failed to quash reports in the U.S. media that Angelina Jolie is three-months pregnant.  —  But rather than worry about the rumours the mother-of-six fell back on a tried and tested method to end them.

Ivana Trump separates from fourth hubby Rubicondi  —  NEW YORK - Ivana Trump has issued a statement confirming reports of marital discord with Italian entrepreneur Rossano Rubicondi.  —  Trump, who married Rubicondi in April, says she filed a legal separation agreement three months ago.

Marg Helgenberger & Husband Separate After 19 Years  —  CSI star Marg Helgenberger has separated from her husband of nearly 20 years, actor Alan Rosenberg.  —  “After 19 years of marriage, Marg and Alan have decided to take some time apart,” the actress's rep said Monday.

Pop Tarts: Was Gordon Ramsay's Alleged Affair Just a PR Stunt?  —  LOS ANGELES — It has been quite a rough week for top British chef Gordon Ramsay after author Sarah Symonds went public with claims she has been having a ten-year affair with the married “Hell's Kitchen” star.

EXCLUSIVE: ER Star Parminder Nagra Pregnant With First Child  —  ER star Parminder Nagra and her photographer beau, James Stenson, are expecting their first child this summer, the actress confirms to Usmagazine.com exclusively.  —  “We are thrilled and overjoyed at the prospect of becoming first time parents,” Nagra tells Us.

Ricki Lake: 'I Can't Believe I Was Fat'  —  Ricki Lake has trimmed 140 lbs. from her all-time top weight of 270 pounds - and says she is holding steady.  —  “I can't believe I was a fat person for most of my life,” the former talk show host, rocking a sexy black Herve Leger dress (size small) …

Madonna & A-Rod Head to Mexico City  —  Photo by: Ronald Asadorian / Splash News Online; Pascal Le Segretain / Getty  —  Coincidence?  —  Madonna and Alex Rodriguez were both spotted in Mexico City last weekend.  —  The two have not confirmed their romance.

This S**t Is Impossible  —  If Mary-Kate Olsen is f**king pregnant, then I better go to the vet, because I might have immaculately conceived a litter of Spaghetti Cat's kittens.  If that evil troll can get knocked up, anybody can.  —  Some obvious jokester told the National Enquirer …

SEAN MILKS IT  —  JAMES Franco says Sean Penn pushed the gay sex scenes in “Milk” further than he expected.  “In the original script I read, there was only one real kissing scene,” Franco tells next month's Elle.  “A month after [director] Gus [Van Sant] asked me to do it, they sent me another script …

McConaughey Goes Bongos Again  —  No cops were called when Matthew McConaughey banged on a drum in Rio this weekend.  —  Granted, this time there were no drug charges that were eventually dropped and he wasn't hanging out naked with Cole Hauser in the middle of the night.

KATE BOSWORTH INTERVIEW  —  Kate Bosworth, through no fault of her own, is one of those young Hollywood actresses whose personality has been writ large in their absence; altogether human complexities expediently forgotten in favour of half truths, tossed into the frying pan of tabloid hysteria …

Kate Hudson: ‘I Stalked A Man’  —  Kate Hudson once stalked a man she was desperate to date, and even recruited her friends to help her track the unwitting suitor down.  —  The single star confesses she was so obsessed with an unnamed bachelor, she tried to manipulate meetings in the hope he would ask her out.

Downey Jr. Knocked Out on ‘Holmes’ Set  —  A freak accident on the set of Robert Downey Jr.'s latest movie was less ‘Iron Man’ and more iron chin.  —  The Sun reports that Downey Jr. was knocked unconscious when a 350-pound stuntman accidentally punched him during a scene they were filming …