Amy's brain scan after rehab  —  and VIRGINIA WHEELER  —  TROUBLED AMY WINEHOUSE sensationally walked out of rehab yesterday — then took a helicopter to London for a brain scan.  —  The heroin and cocaine-addicted singer quit after less than 48 hours — despite her worried parents' pleas to stay.

Britney Finds Herself an Angel  —  Another night, another hookup for Britney Spears!  Her latest conquest?  Notorious womanizer Criss Angel, 39.  —  Cameron Diaz's former fling was seen escorting the pop star inside the Tower Beverly Hills Hotel on Wednesday night, where the two held hands and headed up to a suite on the 11th floor.

BIEL'S GOING BARE  —  SHE'S been shy about bearing her bod every since her racy Gear magazine spread hit stands in 2000, but Jessica Biel plans to shed her threads in the upcoming movie "Powder Blue," which co-stars Forest Whitaker.  Us Weekly reports that she'll play a...

POP PRINCE HOT FOR DIAZ  —  WHEN John Mayer was snapped having lunch with Mandy Moore at La Esquina on Tuesday, it sparked rumors of a love match between them.  But Mayer has his sights set on a more glamorous Hollywood gal - Cameron Diaz .  The same day, Mayer took Diaz to an intimate …

Joel Madden Set to Pop Question to Nicole Richie?  —  Joel Madden has something special in store for girlfriend Nicole Richie: "a little ring," as Regis Philbin called it on live, national television Thursday morning.  —  Appearing with his band, Good Charlotte, on ABC's Live! with Regis and Kelly …

NOT REALLY REAL  —  THEY call MTV's "The Hills" a "reality" show, but we've had our doubts for some time.  Fueling our skepticism, on Tuesday night, the star, Lauren Conrad, showed up at Da Silvano for dinner with three friends and a camera crew.  One irked diner told us, "It was clear that this show is not a reality show.

Heidi Klum Topless and Photoshopped for Jordache  —  Someone like to take her clothes off!  We just saw Heidi Klum naked in Arena magazine last week, and now we have Heidi Klum topless in these ads for Jordache jeans.  —  Of course, while Heidi Klum looks very, very good, she doesn't actually look that good.

Gwen Stefani Can't Wait to Get Pregnant Again  —  Calling herself "a geeky Orange County girl, a chola girl, a rasta girl and an English girl - all mixed together," Gwen Stefani has no mixed feelings about one thing: producing a sibling for her 1-year-old son Kingston.

Bored like Beckham: Posh fails to crack a smile as David finally scores for Galaxy  —  Weeks after their much-hyped arrival in the US, with his debut delayed due to a pesky ankle injury, David Beckham finally scored for team LA Galaxy - but wife Victoria remained strangely unmoved.

Hit The Brakes!  —  Angeina Jolie shot a stunt on top of a Dodger Viper for "Wanted" last night in Chicago.  Filming is expected to wrap in a couple of weeks.  The film is about...well..who cares...it has Angie in it.  —  That dude driving the car is probably in love with her now that he's seen the cat and been hypnotized by it.

Backstreet Boy Howie Dorough to Marry  —  Backstreet Boy Howie Dorough and his longtime girlfriend, Leigh Boniello, are engaged, the couple tell PEOPLE exclusively.  —  They plan to marry later this year.  —  "She wasn't expecting it, and I was quite nervous - more nervous about proposing …

RED OVER PINK  —  AN avant-garde Manhattan painter is suing Pink for copyright infringement, saying the pop cutie used one of his works in a 2006 music video.  In his case filed in Manhattan District Court, Vladimir Kush charges Pink and her record company, Zomba...

Brad Pitt Leaves $300 Tip  —  Add Brad Pitt to the list of Hollywood's most generous tippers!  —  The Babel star made sure to show his appreciation to a security guard on August 11 at 5:45 p.m., when the whole Jolie-Pitt clan headed to Chicago's Field Museum and were treated to a one-hour VIP tour …

Are You Ready for Some Football ... With Ryan?  —  The NFL and Ryan Seacrest go together like Katie Holmes and Tom Cruise.  —  Nonetheless, word on the street is, the "Idol" ringmaster will handle pre-game and halftime hosting duties of the Super Bowl on Fox next February.

'Those things weren't mine'  —  KEIRA KNIGHTLEY has admitted the curves she shows off in a new Chanel perfume advert aren't heaven-scent.  —  The Hollywood babe poses in the altogether with a bowler hat covering her modesty for Chanel's Coco Mademoiselle.  —  But she revealed: "Those things certainly weren't mine.

Pink's Husband Dismisses Cheating Story  —  Pink's husband Corey Hart has denied reports he's cheating on the singer with a woman he was spotted canoodling with in a Hollywood nightclub recently.  On August 4, while Pink was on tour in Europe, the motocross champion allegedly got up close and personal with a young beauty.