Conan O'Brien Says He Won't Host ‘Tonight Show’ After Leno  —  Conan O'Brien released a statement Tuesday saying that he no longer wanted to be the host of “The Tonight Show” on NBC if it appeared at 12:05 a.m.  —  Mr. O'Brien's brief run as host at 11:35 p.m. is to be cut short next month …

Heidi Montag: Addicted to Plastic Surgery  —  At just 23 years old, The Hills star Heidi Montag decided to go under the knife for a second time and have a staggering 10 plastic-surgery procedures in one day.  —  “For the past three years, I've thought about what to have done,” the reality star tells PEOPLE.

Hugh Hefner: Twins Moving Out of Playboy Mansion  —  Is Hugh Hefner ready to be a one-woman man?  —  The Playboy mogul exclusively tells me that two of his three girlfriends, 20-year-old twins Kristina and Karissa Shannon, are moving out of the legendary Mansion and into the neighboring Playmate House.

BUZZ: Has Tiger Woods Checked into Sex Rehab?  —  In the ever-changing story about Tiger Woods, word has resurfaced that he may have entered an upscale clinic in Arizona for sex rehab, according to sources contacted by PEOPLE.  —  The sources say that Woods entered The Meadows …

EXCLUSIVE: ‘Chuck’ Star Zachary Levi Splits with Girlfriend  —  Chuck star Zachary Levi is back on the market.  The actor, 29, has broken up with singer Caitlin Crosby after two years together, a source tells UsMagazine.com exclusively.  —  “He broke up with her on Saturday after his big NBC premiere aired …

Justin Timberlake and Jessica Biel Officially Over  —  HOLLYSCOOP EXCLUSIVE  —  by:  —  Ani Esmailian  —  Good news for all the ladies—It looks like Justin Timberlake is officially back on the market!  —  While Jessica Biel is in Africa climbing the 19340 -foot Mt. Kilimanjaro …

Zach Galifianakis, Paul Rudd reteaming  —  Duo sign on for ‘Will,’ marking their second comedy together  —  Zach Galifianakis and Paul Rudd, who appear together in Paramount's upcoming comedy “Dinner for Schmucks,” are teaming up again to star in the Paramount comedy “Will.”

Joey Fatone Welcomes a Daughter  —  It's a second daughter for Joey Fatone and wife Kelly, the 'NSYNC singer tells PEOPLE exclusively.  —  Kloey Alexandra Fatone arrived Monday evening in Orlando, Fla., weighing in at 5 lbs., 8 oz.  She joins big sister Briahna, 8 ½.

EXCLUSIVE: Cops Believe Jon Gosselin's Ransack Claims Are Publicity Stunt  —  New York police investigating the “ransacking” of Jon Gosselin's apartment believe the event was a publicity stunt, sources familiar with the situation told RadarOnline.com exclusively.

Hollywood's Top-Earning Couples  —  These Tinseltown twosomes have fame, love and money.  Lots and lots of money.  —  LOS ANGELES — The indisputable king and queen of the hip-hop prom are Jay-Z and Beyonce Knowles.  The couple, who quietly married in 2008, not only produce and sing …

Emma Watson burnishes her ethical fashion credentials  —  The Harry Potter star has designed a range of ethical clothing.  Is it stylish or merely on-message politically?  —  The thought of a young successful actress designing an ethical fashion range might seem, at first glance …

‘Lives of Others’ director to helm ‘The Tourist’ with Angelina Jolie and Johnny Depp  —  The many machinations of the spy flick The Tourist seem to all be coming to a head.  Graham King's GK Films has just confirmed that German director Florian Henckel von Donnersmarck …

Seacrest Pulling Double-Duty on Idol?  “Anything Possible,” Says Source  —  Does Ryan Seacrest have it in him to start playing favorites on American Idol?  —  Sources tell E! News that the idea of Seacrest doubling as host and judge remains in play as producers grapple with the question …

‘Up in the Air’ nabs NBR best picture award  —  NEW YORK —George Clooney, watch your back.  —  At Tuesday's National Board of Review gala, where Clooney was honored for playing a corporate downsizer in the drama Up in the Air, his costar and fellow honoree Anna Kendrick admitted that working with him has its downsides.

EXCLUSIVE: MICHELLE WILLIAMS PARTS WAYS WITH MUSIC WORLD  —  That Grape Juice has exclusively received word that Michelle Williams has parted ways with Mathew Knowles and Music World Entertainment!  Check out Michelle's official statement below: … WOW!  —  Your thoughts?

Robert Pattinson to Play Spider-Man?  —  Robert Pattinson is reported to be the top pick for a Tobey Maguire replacement for Spider-Man 4.  We've seen him scale a tree, so he can probably handle some skyscrapers!  —  News spread Monday that Tobey, who played Peter Parker/Spider Man …

Peter Sarsgaard in ‘Green Lantern’ talks  —  Peter Sarsgaard is in negotiations to play the villain in “Green Lantern,” Warner Bros.' big-budget, Martin Campbell-directed tentpole based on the DC Comics super hero.  —  Ryan Reynolds is starring as Hal Jordan, the test pilot who finds …