K-Fat will Become K-Fit — on Reality Show  —  Looks like Kevin Federline is tired of all the K-Overfed jokes — because TMZ has learned he officially signed on to do the next season of “Celebrity Fit Club.”  —  Federleezy has packed on the pounds of late — see Exhibit XXL above — but he's on a mission to reduce the rolls.

Sarah Michelle Prinze and Freddie Prinze Jr. Have a Girl!  —  Sarah Michelle Prinze and husband Freddie Prinze Jr. are parents, PEOPLE has learned exclusively.  —  The couple “welcomed their daughter Charlotte Grace Prinze on Saturday, Sept. 19,” says a rep for the actress.  “The family is over the moon.”

Jaclyn Smith Alive and Well!  —  Honduran media reported earlier that Jaclyn Smith was rushed to the hospital, the victim of an apparent suicide attempt.  El Heraldo, a local newspaper, which first broke the news, is now reporting that it was NOT Jaclyn Smith who was taken to the hospital …

Mackenzie Phillips: I Slept with My Own Father  —  “Don't hate my father,” Mackenzie Phillips tells PEOPLE.  —  But in a tell-all book out Wednesday, the former childhood actress reveals that her dad, musician John Phillips of the '60s band the Mamas and the Papas, engaged with her in a long-term incestuous relationship.

X17 XCLUSIVE - Khloe Kardashian Sets Up Her Wedding Registry!  —  Just after the announcement that Khloe Kardashian will walk down the aisle with boyfriend, now fiance, Lamar Odom of the Lakers, KK did what any good bride would do, and headed to Williams-Sonoma to set up her wedding registry!

Scenes From an Italian Opera Opening: Joel, LeeLee, Others Take in ‘Tosca’ at the Met  —  “We lost Meryl Streep,” a PR girl told The Observer when we arrived to the opening night of the Metropolitan Opera on Monday, Sept. 21, for a staging of Tosca, which Ms. Streep was expected to attend, but, alas, did not.

Charlie Sheen's wife Brooke Mueller upset at Emmy suite at better gift for Sheen ex Denise Richards  —  Brooke Mueller may be Charlie Sheen's second wife, but that doesn't mean she has to accept second best.  —  Mrs. Sheen 2. threw a fit at Kari Feinstein's Emmy Awards gifting suite …

Mel Gibson's Girlfriend: We Have No Plans to Wed  —  Oksana Grigorieva and Mel Gibson  —  Mel Gibson's girlfriend Oksana Grigorieva might be a mom-to-be, but she's not a bride-to-be.  —  Grigorieva, 39, dismissed marriage talk on British TV early Tuesday.

New Anna Nicole Claim: ‘Pharmaceutical Suicide’  —  A pharmacist told Anna Nicole Smith the drugs her internist prescribed to cope with her son's death were “pharmaceutical suicide,” according to just released documents.  —  And, in a stunning turn, the court papers filed by the State …

LiLo May Have Connection to Burglary Suspect  —  The man arrested for allegedly burglarizing Lindsay Lohan's house may not have been a stranger to the actress..  —  Several people who worked with her on the movie “Labor Pains” — which was shot last year — tell TMZ they saw Nick Prugo hanging out on the set with Lindsay.

The Rumors Are True!!!  —  Hi dolls.  I'm thrilled to finally be able to tell you that the news is true... Lamar and I are getting married on Sunday!!!  I couldn't be happier and I'm so excited that I can finally share the news with all of you.  —  Your well wishes have meant the world …

Taye Diggs Digs Being Dad to Baby Son  —  Idina Menzel, Walker and Taye Diggs  —  Amid the chaos and anxiety that comes with being a newly minted father, Taye Diggs has emerged with that uniquely parental emotion: pure, unadulterated awe.  —  “It's been amazing just to come home to that little dude …

Harper's Island's Elaine Cassidy Welcomes a Daughter  —  It's a girl for Harper's Island star Elaine Cassidy!  —  The Irish actress and husband Stephen Lord welcomed their first child, daughter Kíla (pronounced Key-la) Lord Cassidy, on Wednesday, Sept. 16, her rep tells PEOPLE exclusively.

‘Daddy wanted to take a nap - and I made too much noise’  —  A FOUR-year-old CHRISTINA AGUILERA was left drenched in blood after her father violently attacked her - for innocently disturbing his “nap”.  —  The pop star and her mum SHELLY KEARNS have opened up about the abuse they suffered …

Honeymoon's Not Over for Bruce and Emma Willis  —  They're just another married couple now, but you wouldn't have guessed it from the way Bruce Willis and new wife Emma Heming were acting in New York Monday night.  —  At the Cipriani Wall Street for Susan and Tony Bennett's Exploring the Arts Gala …

Kevin Jonas Chooses His Best Men  —  Kevin Jonas may not have set a wedding date yet, but the oldest Jonas Brother has one thing checked off his to-do list as he prepares to tie the knot with girlfriend Danielle Deleasa - he's made his decision in choosing a best man.  —  Make that best men.

Rihanna & Justin Timberlake Secretly Dating!?!  (Photos)  —  Justin Timberlake, who has been dating actress Jessica Biel for more than two years, and singer Rihanna were spotted together in New York a couple of times.  Rumors say the two might have been secretly hooking up and that Justin …

It's Official: Heather Locklear Returning to Melrose Place  —  As Us Weekly previously reported, Heather Locklear is returning to Melrose Place, it was announced Tuesday.  —  Locklear, 47, will reprise her role as scheming ad vixen Amanda Woodward on the new CW version of the show.

Fox wins first night of season: ‘Heroes’ falls, ‘Big Bang’ leads CBS  —  High ratings drama Monday night with a deluge of broadcast network premieres:  —  >> Fox won the opening night of the fall season for the first time in its history.  The network aired the two-hour return of “House” …

ELLEN DEGENERES DEFENDS JUDGING QUALIFICATIONS: I'VE SPENT MY WHOLE LIFE BEING JUDGED  —  After she made headlines for replacing Paula Abdul on the judges' panel of next season's “American Idol,” Ellen DeGeneres is taking on critics who have questioned how qualified she is to judge the hit singing competition.

PHOTO: Suri Cruise Wears High Heels!  —  My, how she's growing!  —  Suri Cruise, 3, retained her chic child status Monday, sporting a pair of high heels while shopping with mom Katie Holmes in Boston (where Tom Cruise is shooting his new action comedy, Wichita).

Witness Testifies About Travolta's Desperation  —  The first witness has taken the stand in the John Travolta extortion case and testified John initially wanted to take his son Jett to an airport instead of a local hospital.  —  Police inspector Andrew Wells testified paramedic/defendant …