Amber alert: Model Valletta in rehab  —  Supermodel turned actress Amber Valletta has entered rehab for "work stress, image issues" and nonsubstance-related addiction, according to a close source.  —  The stunning blond - who had eye-catching roles in "Hitch" and "Transporter 2" - is being treated at the Meadows in Wickenburg, Ariz.

Tom Cruise: Hollywood's Newest Free Agent  —  It may be Hollywood's biggest divorce ever: the seemingly abrupt end to the 14-year union of Tom Cruise and Paramount Pictures.  —  "Extra" is behind the war of the words between the world's biggest star and studio titan Sumner Redstone …

Britney Spears Vows To Get In Shape, Disses Jessica Simpson  —  Box of Pop-Tarts Britney Spears has vowed to get into shape so that she can go a world tour next year.  Perhaps she has been reading all the wonderful comments from the Hip-Hop community and has come to realize that she's going to have to continue to be the bread winner.

JonBenet prankster blitzes Wolf  —  Captain Janks has struck again!  —  Yesterday, the notorious prank caller and Howard Stern fan - real identity: North Wales, Pa., gas-station employee Thomas Cipriano - scammed his way onto CNN's "The Situation Room."  —  In a live 4 p.m. phone interview …

Brody Jenner's 23rd birthday  —  Brody Jenner had a party at Privilege Nightclub in Hollywood to celebrate his 23rd birthday, which you can tell from the people that showed up, was STAR STUDDED!  Stavros Niarchos came out of hiding.  There was booze there and it was in Hollywood so of course Tara Reid showed up.

K-Fed to World: "I'm Broke But So Damn Smart"  —  K-Fed might not be the world's greatest rapper, but there's one thing he does claim to be "amazing" at: the GED.  —  The rapper-on-the-make says that he passed his high school equivalency with flying colors — "Not that it's the hardest thing in the world," he admits.

Michael Jackson murals may go up for bid  —  Plus: Is Ashton Kutcher seeing red about following Kabbalah?  —  Some of Michael Jackson's art collection might end up on eBay.  —  The singer reportedly owes thousands of dollars to an art-gallery owner in Santa Ynez Valley, California …

Mel Phones Jews — "I'm Really Sorry"  —  Mel Gibson has decided to make good with the Jewish community, one Jew at a time.  —  TMZ has learned that Gibson has been calling entertainment industry honchos with whom he's worked in the past and apologizing for his anti-Semitic rant the morning of his DUI arrest.

NORM: Local 'Idol' entry Gordon assaulted  —  Local "American Idol" contestant Mikalah Gordon is "lucky she's alive" after being assaulted during a robbery at gunpoint at 3:30 a.m. Wednesday, her mother said.  —  Gordon, 18, was taking a break from recording music when a man pointing …

What's Worse?  Mischa Barton's Thigh Or Cisco Adler?  —  I'm not too sure if this picture of Mischa Barton's curdled thigh is real or fake but there's no reason for me to believe that it's not.  I mean, we've all seen her out of shape body in a bikini before and just because you're skinny …

'SNL' sans Sanz?  Not this fall, actor says  —  If Horatio Sanz is on his way out at "Saturday Night Live," it's news to him.  —  Reports flared up this week that the former Chicago comedian is getting the ax as part of cost-cutting at NBC's live-from-New-York perennial.

Constantine Maroulis Confirmed for Broadway's Wedding Singer  —  Constantine Maroulis, a finalist in the 2005 season of television's "American Idol," will join the cast of Broadway's The Wedding Singer, it was announced.  —  Playbill.com first reported Maroulis' casting on Aug. 22.

Mariah Carey hits the Garden, just like that  —  Appearing on a highly stylized, Art Deco stage set, Mariah Carey kicked off her sold-out concert Wednesday night with "It's Like That," from her blockbuster new album, "The Emancipation of Mimi."  Clearly, one thing Carey has been emancipated from is her clothes.

Taylor Hicks Sues Over iTunes Releases  —  "Idol" crooner in beef with 2001 Nashville recordings producer  —  "American Idol" winner Taylor Hicks has sued a Tennessee music producer to halt the online distribution of songs the grey-haired crooner recorded five years before copping the reality TV crown.

The Shins Stretching Out On Third Album  —  Indie rock kingpins the Shins stretch out on their third album, "Wincing the Night Away," due in January via Sub Pop. Save for a handful of backing vocals, the set is completely finished and will be mixed in the coming weeks in Portland …

Heather Locklear: Sheer Skirt!!  —  Heather's Sheer Madness  —  Oopsy Dasiy!  Heather Locklear was spotted out and about Tuesday morning revealing a bit more than she intended in a sheer summer skirt.  Heather, 44, and funnyman David Spade, 42, have reportedly been dating since April and met through their mutual manager.

Here's the stupor group  —  The Priory Clinic presents ... Pete Doherty, Tom Chaplin and Justin Hawkins  —  WHEN I heard PETE DOHERTY, JUSTIN HAWKINS and TOM CHAPLIN were all in The Priory, I joked that they should form a supergroup.  —  And in a quirk of showbiz fate, my prediction has come true.

Karr's Family Selling Book, Movie Rights  —  Relatives of accused JonBenet Ramsey killer John Mark Karr secured movie and book rights to the family's story on Wednesday, and hope to use any money raised to hire a defense attorney for Karr and pay for college for his three teenage sons.