Lindsay Lohan Cancels 21st Birthday Celebration  —  Lindsay Lohan's rep tells Usmagazine.com that the actress has canceled her 21st birthday party, originally scheduled to go down at PURE nightclub in Las Vegas on July 2.  —  "The party was canceled officially over two weeks ago.

HIGH PRIEST TOM  —  TOM Cruise is at the highest level of "clear" in Scientology - and now he may even perform a wedding for a friend, Australian heir James Packer, one of the church's richest benefactors, Women's Wear Daily reports.  Packer, who inherited a $6.5 billion fortune when his father …

Britney Ballistic Over Billboards  —  Singer may sue over radio show's "nut job" advertisements  —  Britney Spears is threatening legal action against a Florida radio station that used a bald-headed photo of the pop star on billboards that appear to call her sanity into question.

MY GEORGE  —  EXCLUSIVE: YORKSHIRE-BORN SARAH TELLS OF HER PASSIONATE FOUR-MONTH FLING WITH THE WORLD'S SEXIEST MAN  —  A BRITISH single mum yesterday told of her secret four-month romance with movie heart-throb George Clooney.  —  The superstar fell for pretty Sarah Talley, 33, after meeting her in a Las Vegas nightspot.

Paris Hilton Roundup: Hilton Makes a Father's Day Card in Jail  —  Paris Hilton made a special gift for her visiting dad Sunday - a Father's Day card.  —  Rick and Kathy Hilton arrived at the Century Regional Detention Center in Lynwood, Calif., in a chauffeured silver Chrysler just after 7 p.m. on Sunday.

Nicole's Get Outta Jail Free Card?  —  No, you are not looking at her ass, that's Nicole's belly/baby-bump!  —  Not only are rumors that Nicole's pregnant and hoping being with child will spare from a fate similar to Paris' running rampant, but now The Post is reporting that she's also engaged!

NUPTIAL JITTERS  —  EVA Longoria's wedding to Tony Parker is fast approaching, and her mane man, Ken Paves, has told the tiny housewife he'll do her hair for free as a gift.  Also offering his service free of charge is Longoria's famed stylist, Robert Verdi.  Meanwhile, some of Longoria's pals are worried about Parker.

Julia Roberts Gave Birth  —  Everyone's favorite Julia Roberts gave birth to a son today .

Rosie O'Donnell: Women Will 'Stab You in the Back with a High Heel'  —  Rosie O'Donnell rocked out on Sunday night - and joked about her tumultuous year as cohost of The View.  —  The comic, 45, is appearing as a special guest on Cyndi Lauper's True Colors tour, and played drums for the singer …

New Couple Alert: Kim Kardashian and Evan Ross  —  Kim Kardashian turned up at Les Deux this weekend holding hands with Evan Ross.  They shared a table and were very close all evening.  "It was definitely a date" an observer said.  Kim hasn't had a serious romance since she made her sex video …

Minnillo & knives a bit edgy for TV  —  Two sources tell us Vanessa Minnillo has been in talks to star in her own reality show.  —  But her scary knife play with Lindsay Lohan, which emerged in recently leaked photos, may have thrown a wrench into the deal.

Britney Flips Out  —  Britney is quite a lady, y'all!  —  The weave-atrocious pop mom popped into a Beverly Hills nails salon to get a French-tipped manicure to complement her demure hairdo, creating this ghetto/beach been-up-all-night-hey-mistah look!  Heyyyyyyyyyyh!

'Real World' Regular Coral Happy Exploring Her 'Lesbian Qualities'  —  'Real World' Regular Coral Happy Exploring Her 'Lesbian Qualities'  —  Reality Television Star Comes Out, Contemplates Return Another MTV Run  —  Since Return to New York, the 2001 season of the hit Real World franchise …

Casting Stones over a Gulf in values  —  Sharon Stone and other celebs are headed to Dubai, in the United Arab Emirates, to raise money for AIDS victims - but are they doing it on the backs of that country's human-rights victims?  —  Stone and her amfAR allies have been cultivating …

Britney Spears' Squished Nipple Slip  —  I don't know why Britney Spears decided not to actually put the straps of her dress on the way they are supposed to go.  I don't know why she's holding her breasts in such a way that she basically has a squished nipple slip.  And I don't know why she's so retarded.

I'm with the band!  Kate becomes Pete's roadie  —  Supermodel Kate Moss has put her glamorous £45 million career aside for a night to try her hand at a more modest role - as Pete Doherty's roadie.  —  Moss, who wore all black and towering Christian Louboutin stilettos …

Affleck and Damon Celebrate Father's Day in Hawaii  —  BFFs Ben Affleck and Matt Damon reunite for Father's Day on Sunday for a little vacation in Hawaii with their respective families.  —  Ben brought along wife Jennifer Garner with their 18-month-old daughter Violet.