Kim Kardashian/Kris Humphries Negotiating Prenup  —  Kim Kardashian and her fiancé Kris Humphries are hedging their bets — they're hammering out a prenup before they tie the knot ... TMZ has learned.  —  Sources close to the couple tell us ... both Kim and her NBA star hubby …

Exclusive: Blake Lively Will ‘Poke Fun’ at Nude Photo Scandal at MTV Movie Awards  —  The MTV Movie Awards are always a place for celebrities to make fun of themselves and the messes they've found themselves in — and according to Celebuzz sources, Blake Lively plans on getting some laughs from her recent photo scandal.

Whitney Houston — 30 Days of Rehab Ain't Enough!  —  Whitney Houston is voluntarily seeking additional treatment for drug and alcohol addiction ... TMZ has learned — after completing a 30-day out-patient rehab program earlier this week.  —  Sources close to Whitney wouldn't elaborate …

‘Jersey Shore’ — Season Four Premiere Date Set  —  Attention all guidos and guidettes — your leaders are returning to the airwaves on August 4.  —  MTV announced the season four premiere date of “Jersey Shore” on Friday — and also their plans to start shooting season five later this month.

The Royals Head to the Races  —  Duke of Cambridge, Prince Harry and the Duchess of Cambridge  —  Prince William and new bride Kate led the way in showing their support for his grandmother's horse at a prestigious race meeting Saturday.  —  The newlyweds were on hand to give Queen Elizabeth …

Jim Carrey Gushes Over Grandson & His New Penguin Co-Stars  —  Jim Carrey,John Lennon,Media,Angela Lansbury,Carla Gugino,News,Pop,Parenting,Movies  —  “Mr. Popper's Penguins” star Jim Carrey dove into being a grandfather after his daughter, Jane, gave birth to Jackson Riley Santana last year …

Charlie Harper's Exit From ‘Men’ — Dee Plane!!!  —  Charlie Harper — Charlie Sheen's character on “Two and a Half Men” — will probably get a “French kiss off” from creator Chuck Lorre.  Worry not ... we'll explain.  —  During the last original episode that aired February 14 …

Wow!  Marion Cotillard Super-Slim 2 Weeks After Giving Birth  —  Mon dieu!  —  Just two weeks after celebrating the birth of her first child, Inception star Marion Cotillard showed off her svelte post-baby physique in Paris Thursday.  —  The Oscar-winning actress gave birth to her son …

Justin Timberlake & Jessica Biel Reunite!  —  Bumping into an ex at a mutual friend's party can be awkward for most of us.  —  But not for Justin Timberlake and Jessica Biel, who attended the same party on Thursday afternoon in Brentwood.  —  According to a source, the former couple was more than civil at the celebration...

‘Gunsmoke’ Star James Arness Dies at Age 88  —  James Arness, the 6-foot-6 actor who towered over the television landscape for two decades as righteous Dodge City lawman Matt Dillon in “Gunsmoke,” died Friday.  —  He was 88.  —  The actor died in his sleep at his home in Brentwood, Calif. …