'Jack had sex with Paris Hilton'  —  OZZY and SHARON OSBOURNE have revealed that son JACK once bedded jailbird PARIS HILTON.  —  The pair outed Jack's secret when I caught up with them in Ozzy's dressing room before last night's triumphant Wembley Arena gig.

LONGER REHAB  —  LINDSAY Lohan won't be celebrating her birthday at Pure in Las Vegas over the Fourth of July holiday - because she may still be in rehab.  A close friend of Lohan said, "She is staying in Promises for longer than a month.  We don't know how much longer because of her work schedule …

BABY BOOMLET  —  RUMORS that Christina Aguilera is expecting a baby "are definitely true," according to a well-placed Page Six source.  "She's been telling friends," said one snitch, who revealed, "she has to be three months now, because she's announcing it."  This would be the first for Aguilera and her husband, Jordan Bratman.

JOLIE'S 'MIGHTY' FAKE APOLOGY  —  A QUESTION for Angelina Jolie - you say you're sorry and not at all responsible for trying to get Fox News banned from the premiere of "A Mighty Heart" last week - but, are you really?  —  The pouty-lipped baby addict apologized for not only trying to ban Fox reporters …

KATIE'S BUMP FREE TUM  —  This flat tum belongs to Katie Holmes.  —  Does it look like it has a baby bump secret to spill?  —  Nope, we think not.  —  A toned Katie hit the surf with gorge baby Suri in the South of France, where the girls and Tom Cruise were attending the beachside wedding …

Larry Birkhead Talks About Life with Dannielynn  —  On Tuesday, a court named Larry Birkhead guardian of Dannielynn, his daughter with the late Anna Nicole Smith - but he has for months been building a life for himself and the baby.  —  Birkhead and 9-month-old Danielynn recently moved …

Judge Orders Nicole Richie to Stand Trial  —  As her friend Paris Hilton sits in jail, Nicole Richie inches closer to learning her own fate.  —  The Simple Life star, who was arrested for a DUI in December of 2006, was ordered today by a Los Angeles Superior Court to stand trial on July 11.

Britney Spears Drinking Again  —  Is Britney Spears falling back into bad habits?  —  The singer - who has repeatedly denied having a problem with alcohol - was seen kicking back several rounds of cocktails on June 15, less than 90 days after leaving rehab.

Liv Tyler 'Definitely' Wants Plastic Surgery  —  Liv Tyler is one celeb who isn't swearing off plastic surgery.  —  "I'm definitely going to have some, I'm sure," the actress, who turns 30 on July 1, says in the July issue of Allure.  "Especially when you see what happens to your body after you have a baby."

McG and partner a new pop duo?  —  Are former New Jersey Gov. Jim McGreevey and his partner, Mark O'Donnell, thinking about adopting?  —  The ex-gov recently revealed their dream while shopping for baby clothes at Saks, according to an eavesdropper.  "He said he wanted to adopt a baby," the source tells us.

Usher's Fiancee Tameka Foster Speaks Out on the Rumors, Romance and the Rock: Tameka's Turn - PART I  —  As rumors swirl around her engagement to R&B superstar Usher, celebrity stylist Tameka Foster shares a few confessions of her own with essence.com about the end of her marriage, her alleged pregnancy and being labeled a gold digger.

SCREEN DREAMER  —  AVRIL Lavigne may make fun of Britney Spears and Jessica Simpson, but the faux punk princess wants to try her hand at acting - just like her rivals.  In a synergistic move, Lavigne is said to be in talks with Sony BMG (for which she also records) to play a lead role in a …

Stella turnout for Macca's 65th birthday  —  After a year he must privately describe as his "annus horribilis", Sir Paul McCartney could be forgiven for letting his hair down.  —  The legendary ex-Beatle has been through the mill over his divorce from "Lady Mucca", Heather Mills-McCartney …

Chachi — 45 and Single?  —  San Fernando Valley lothario Scott Baio, who has allegedly had his way with numerous Hollywood honeys — including Heather Locklear, Pamela Anderson, Denise Richards and Nicollette Sheridan — is now 45 and still single.  What?  —  Chachi, seen here with pal Jason Hervey …

Paris' neighbors anxious of media swarm  —  LOS ANGELES - Paris Hilton may be looking forward to her jailhouse release, but her neighbors aren't.  —  Anticipating a horde of media when the socialite is expected to be released next week, some Hollywood Hills residents are circulating …

Tara Reid's Mouth — Takes on All Comers  —  She showed signs of improvement, but apparently it didn't stick — Trainwreck Tara is back and tongue-friendlier than ever!  —  TMZ cameras snapped Ms. Reid in a car parked outside of Hyde last night — no word on if she actually made it through the doors …