Exclusive: Ashton Kutcher Caught Cheating on Demi Moore!  —  Their 15-year age gap always made Ashton Kutcher and Demi Moore seem like an unlikely match.  And now, just five years after getting married, the couple's relationship is in danger of falling apart as Star breaks the bombshell news …

EXCLUSIVE: Lindsay Lohan Sends Cease & Desist Letter To Dad: Stop Selling My Stuff!  —  Lindsay Lohan's war of words with her estranged father Michael is moving into the legal arena.  —  The troubled starlet has fired off a scathing and threatening cease and desist letter to her dad …

Paris Hilton Banned from Wynn Las Vegas Properties  —  In light of her arrest Friday for possession of cocaine, socialite Paris Hilton has been banned from the Las Vegas resorts Wynn and Encore, a spokesman for the properties confirmed to PEOPLE.  —  The ban comes after several Las Vegas insiders claimed …

‘New Jersey Housewife’ — Double My Pay or I'll Quit!  —  TMZ has learned “Real Housewives of New Jersey” star Teresa Giudice is “ready to walk away” from the show unless producers cough up “Jersey Shore money” ... and fast!!!  —  Sources connected to the show tell us “several of the women …

Who turned down ‘Dancing With the Stars’  —  Exclu: We've seen who will cut a rug on the next “Dancing With the Stars.”  But do you know who turned ABC down?  —  According to a source involved with casting, the network approached Facebook creator Mark Zuckerberg to join the dance card …

EXCLUSIVE: Jon Gosselin Threatened To Report Kate To Child Protective Services Unless She Gave Him Money, Says Ex  —  Jon Gosselin threatened to report his then-wife Kate to Child Protective Services unless she gave him a large sum of money, RadarOnline.com is reporting exclusively.

Conan O'Brien Announces the Name of His New TV Show on Vulture!  —  Ladies and gentleman, summer 2010's greatest pop-culture mystery is about to be solved: No, not the identity of the new American Idol judges, the other greatest mystery.  Today, Conan O'Brien officially announces the exact name …

Radiation, Chemo ‘Really Knocks You Out’  —  Michael Douglas knows he has a tough road ahead - but he's ready to face it.  —  “It's a fight,” says the 65-year-old Oscar winner, who is undergoing a grueling course of radiation and chemotherapy to treat a tumor at the base of his tongue …

Gunn's blazing: TV's favorite fashion guru Tim unleashes some serious dish  —  Tim Gunn built his reputation on being sweet, supportive and scrupulously polite.  So why, in his latest book, does he spend key pages flinging mud and gorging on gossip?  —  In the deceptively titled …

Police kill Discovery building gunman  —  Three hostages safe, police say; man told NBC he had several bombs  —  on msnbc.com -

Jodie Sweetin Has a Baby Girl  —  Jodie Sweetin has a full house of her own.  —  The actress, 28, welcomed her second child, a baby girl named Beatrix, on Tuesday with her boyfriend Morty Coyle.  —  “Jodie was amazing and is doing great,” Coyle tells PEOPLE.

Your First Look at Glee's Second Season, Set to the Tune of ‘Empire State of Mind’  —  Let's hear it for New York: Vulture can confirm that the first big musical number of Glee's season-two premiere (airing September 21) will be built around the Jay-Z/Alicia Keys duet “Empire State of Mind.”

Hostage 911 at Discovery Channel — Man with Gun  —  A man wielding a gun and possibly carrying an explosive device is holed up at the Discovery Channel headquarters in Silver Spring, MD — and now he's been identified by the network as radical environmentalist — James Jay Lee — who has had a grudge against Discovery for years.

Paula Patton Joins ‘Mission:Impossible’  —  EXCLUSIVE: Paula Patton has landed that female lead role that Deadline told you she was testing for, alongside actresses Lauren German and Kristen Kreuk.  I'm told that Patton will play a young operative who works with Tom Cruise's Ethan Hunt character.

Miley Cyrus Goes “Overboard” With Justin Bieber for Bieber Bio  —  And Katy Perry thought she was the one with the teenage dream.  —  A bunch of major pop-R&B stars—ranging from his mentors, Usher and Ludacris, to Motown Philly's finest, Boyz II Men—joined an all-better Justin Bieber …

Steve Carell's Replacement on The Office to Be...Harvey Keitel?!  —  You'll never guess what Office executive producer Paul Lieberstein just told us about who he now wants to replace Steve Carell:  —  “He's probably the only guy who can do it, and he's doing TV now,” Paul tells us of the Oscar nominee …

Celine Dion Is ‘Healthy’ in Pregnancy Homestretch  —  Céline Dion and René Angélil  —  Celine Dion - and the twin boys she is expecting in November - are just fine, thank you very much.  —  Recent reports in a French tabloid claiming that the singer was rushed …

Stabbing Details Emerge at Trial of 40-Year-Old Virgin Actor  —  Shelley Malil in The 40-Year-Old Virgin  —  Shelley Malil, an actor best known for playing an electronics-store clerk in The 40-Year-Old Virgin, calmly walked up to his ex-girlfriend Kendra Beebe in her backyard two years ago …

Hot Property: JJ Abrams, Elizabeth Sarnoff To Shop ‘Alcatraz’ Drama  —  EXCLUSIVE: JJ Abrams and Lost executive producer Elizabeth Sarnoff are heading to another island.  I hear Abrams and his Warner Bros. TV-based Bad Robot are about to take out to the networks Alcatraz, a drama spec script written by Sarnoff.

Kelly Bensimon to Departing Housewife Bethenny Frankel: Good Luck!  —  On Tuesday afternoon, UsMagazine.com broke the news that Bethenny Frankel is leaving Real Housewives of New York after three seasons.  ("Last season was scary and painful," Frankel told Us exclusively.)

Jessica Alba: Why 'I've shied away from Latin characters'  —  Jessica Alba and director Robert Rodriguez are in Venice today to promote gritty new movie Machete.  —  It's the first Latina role for half-Mexican Alba.  And Alba tells USA TODAY's Arienne Thompson that her immigration …