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.

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 …

Heidi Montag 'Upset' Over Leaked Song  —  Heidi Montag talks about making music almost as much as she talks about the feud with her Hills costar Lauren Conrad.  But unlike her very public fights, Montag did not want a song she recorded to be played on the air.

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...

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 …

Jenna Bush Engaged  —  President Bush is getting a son-in-law: His daughter Jenna is marrying boyfriend Henry Hager, the White House announced Thursday.  —  "President and Mrs. George W. Bush are happy to announce the engagement of their daughter, Jenna Bush, to Mr. Henry Hager …

Salma Hayek: Baby Mammoth  —  There's going to be a helluva chiropractic bill for the stork delivering Salma Hayek's baby!  —  The magnetic mommy-to-be was snapped leaving Fred Segal in West Hollywood yesterday, where she emitted that classic pregnancy glow —at a high octane level!

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.

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.

Hilary Duff's Legs Can't Cure A Hangover  —  Here's Hilary Duff performing in LA. I'd like to go into how hot she's become but I have a killer hangover from last night and not even Hilary and her little sexy legs can make me feel better.  This glass of ice cold water on the other hand is quite refreshing.

Star Jones: I Didn't Want to Die Fat  —  Star Jones Reynolds is celebrating her fourth anniversary — but it's not what you think.  —  "This Sunday will be four years exactly that I walked into a hospital and had gastric bypass surgery," she said on Good Morning America on Thursday.

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.

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.

'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.