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.

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.

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 …

Khloe Kardashian's Mom: Quickie Weddings Are “Romantic”  —  Khloe Kardashian's mother Kris Jenner is keeping her lips sealed about her daughter's wedding this weekend.  —  But does she think it's crazy Khloe, 25, and NBA player Lamar Odom are getting hitched after just one month of dating?

A New Man for Kate Walsh  —  Kate Walsh seems to have moved on from her divorce to film executive Alex Young - she attended the Emmy Awards Sunday with new beau Neil Andrea.  But the Private Practice actress isn't about to kiss-and-tell.  —  When asked about her hot date, Walsh told PEOPLE, “I'm not going to talk about that!

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.

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 …

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.

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 …

She totally hates them  —  JailBait Miley Cyrus was photographed by the paps after lunch with her friend yesterday.  Doesn't she look like she hates the paps so much?  They are vile, reprehensible creatures!  —  This, you see, is the message she tried to convey on her Twitter yesterday:

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.

Lamar's Baby Mama on Khloé Nuptials: “I Thought It Was a Joke”  —  If you think you're surprised by Khloé Kardashian and Lamar Odom's upcoming quickie wedding on Sunday, imagine how the groom's ex-fiancée must feel.  —  Odom, 29, began dating Liza Morales when they were both just 17 …

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 …

EXCLUSIVE NEWS: Resident Evil: Afterlife casting news  —  Boris Kodjoe talks about his role and reveals plot details and other cast members  —  With Paul W.S Anderson back on board to direct “Resident Evil: Afterlife,” the fourth film in the franchise and Milla Jovavaich set to reprise …

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.

Jennifer Garner's an Old-Fashioned Mom  —  Jennifer Garner may downplay her mom abilities, but she has no shortage of ideas about encouraging her kids to think creatively, a friend says.  —  “Every day, you feel like you are off-balance one way or another,” Garner, at Monday's Hollywood premiere …

‘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 …

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” …

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.

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 …