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 …

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: Bethenny Frankel Tells Us: I Quit The Real Housewives of New York!  —  After three seasons, Bethenny Frankel exclusively tells Us Weekly she is leaving the hit Bravo show.  —  “Last season was scary and painful,” she tells Us about why she's rejected Bravo's offers to return for season 4 …

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.

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.

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 …

IUC World Exclusive: Longtime Pal of Paris Hilton Claims Heiress Went to Bathroom To Hide Illegal Cargo In Her Vagina  —  A longtime pal of drug felony charged PH accused the spoiled wildchild of using her vagina as a hiding place for her stash.  “That's why the first thing she asked the cops …

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 …

WATCH: MEET THE NEWEST ‘TWILIGHT’ HUNK  —  ET's introducing you to one of the new castmembers of ‘The Twilight Saga: Breaking Dawn.’ ET correspondent Kate Gosselin chatted with new ‘Twilight’ hunk Rami Malek, at ET's exclusive Emmy party.  —  Malek told ET that he was thrilled about his upcoming role in …

Tiger Woods — The $54 Million Mortgage  —  With the real estate market still in the crapper ... Tiger Woods recently took out a $54.5 million mortgage for the mega-mansion he's building on Florida's exclusive Jupiter Island.  —  TMZ has obtained legal documents filed in Martin County on August 27 …

Meet the Cast of The Real Housewives of Beverly Hills  —  It's official!  The Real Housewives are invading Beverly Hills for the latest installment of the Bravo reality franchise, debuting Oct. 14 — and many of the casting rumors are turning out to be true.

Dwayne Johnson to star in ‘Journey to the Center of the Earth’ sequel (exclusive)  —  Dwayne Johnson is strapping on a backpack for New Line's “Journey 2: The Mysterious Island,” the sequel to “Journey to the Center of the Earth 3D.”  —  Brad Peyton is on board to direct the film …

Heidi Pulls ‘Kill Switch’ on Sex Tape Negotiations  —  So much for Heidi and Spencer in XXX ... TMZ has learned the estranged couple has officially cut off negotiations with Vivid Entertainment honcho Steven Hirsch ... telling him they're no longer interested.

Jessica Alba deftly defies stereotypes, tries out new roles  —  LOS ANGELES — At first glance, Jessica Alba lives up to assumptions: beautiful, tall, glamorous and aloof.  But within a few minutes, the sex symbol turns on the charm, shedding the ice-princess aura for something friendlier and more engaging.

George Clooney Looks to Chris Pine, Philip Seymour Hoffman, and Paul Giamatti for His Next Directorial Effort, Farragut North  —  Three years ago, George Clooney announced his intention to direct a big-screen adaptation of the off-Broadway play Farragut North, a political drama …

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 …

Samantha Ronson Faces Investigation in Dog Attack  —  Samantha Ronson says she's devastated after her bulldog Cadillac reportedly killed a tiny dog near her West Hollywood home.  —  “I feel incredibly sad and wish I could offer more than condolences,” Ronson wrote on her Twitter page.

Bristol Palin Plans to Wear the ‘Most Modest Outfits’ on DWTS  —  Bristol Palin might be stepping out of her comfort zone this season on Dancing With the Stars, but she won't be stepping into any of the show's skimpy costumes.  —  “I think I will be the most dressed [contestant and have] …

Blake Lively: Peek-A-Boob!  —  Blake Lively lets the girls out to play while shooting a scene with new Gossip Girl star Sam Page in New York City on Tuesday afternoon (August 31).  —  The 22-year-old actress, who wore a sexy peek-a-boob top, locked arms with Sam and played his new love interest.

Exclusive: Sharon Lawrence moves to ‘One Tree Hill’  —  Look out, Brooke: Your monster-in-law is coming to town—and she wants to plan your wedding!  —  NYPD Blue's Sharon Lawrence is headed to One Tree Hill for multiple episodes as Julian's (Austin Nichols) never-before-seen mother, sources confirm to me exclusively.

Kristen Bell: ‘I Love Being 30 More Than Anything’ … NEXT  —  Elisabeth Moss' Emmy Advice: ‘Always Have a Protein Bar in Your Purse’  —  Sign up for our free online newsletter!

Kellan Lutz: I Don't Want to Be “a Piece of Meat” My Entire Career  —  Take it off!  —  Twilight hunk Kellan Lutz holds no illusions about the nature of his stardom.  “Producers and studios know what sells,” the impressively fit actor told UsMagazine.com during a Monday phone interview.