Hilton's jail term cut to about 23 days  —  LOS ANGELES - Paris Hilton will serve about half of her 45-day jail sentence and will be separated from the general inmate population, authorities said Wednesday.  —  The hotel heiress will spend about 23 days in a "special needs housing unit" …

BEST MAKES LOHAN SCREAM  —  A SCREAMING match broke out between Lindsay Lohan and her new bad-boy-toy, Calum Best, at the Soho Grand on Monday night.  Sources told Page Six the "screamfest" started in the penthouse and ended up in the lobby.  "Calum's clothes were torn, and after a few minutes …

Britney Spears' mom snub  —  Britney Spears reportedly refused to visit her sick mother in hospital.  —  The singer is said to have fallen out with Lynne after a string of rows over Britney's partying and wouldn't even call on Mother's Day, Sunday (13.05.07) in the US, while the 52-year-old was suffering from pneumonia.

MARBLE MISSTEP  —  "THE Office" star Jenna Fischer won't be going back to Buddakan any time soon.  The pretty brunette was celebrating her series being renewed Monday night with friends when she slipped on the restaurant's marble steps and fractured four bones in her back.

Jessica Simpson's Dad Gives John Mayer Seal of Approval  —  Joe Simpson may not have approved at first of daughter Jessica's marriage to Nick Lachey, but he's given her new man, John Mayer, the thumbs up.  —  "If Jessica is in love, I love the things she is in love with," Joe Simpson, 49 …

JACKO TRIES TO BLOCK AUCTION  —  MICHAEL Jackson may want to tread lightly in his fight to get back millions of dollars of Jacko memorabilia being auctioned in Las Vegas this month - that is, if he doesn't want the owner to include some very embarrassing items, such as portraits of naked kids and sex toys.

X17 XCLUSIVE - Britney's Night Out ... With Ryan Phillippe?  —  Britney hit the town last night with a first stop at Dominic's restaurant (though our photogs say she was inside for just a few minutes) before heading off to Les Deux around 11 pm with Alli and her pal Jessica.

Ike Turner Arrest Bogus — Holy Nutbush!!!  —  In a strange twist of fate, Ike Turner is finally going to be the one hearing the words, "Sorry baby."  —  TMZ has learned that the 75-year-old music legend was arrested last night in Los Angeles on a narcotic-related warrant that was issued and recalled in 1989!

Did someone say 'free'?  —  Plus: Sanjaya faced song censorship on 'American Idol'  —  Lindsay Lohan was loading up on the freebies at the Lucky Club's Gifting and Hospitality suite at New York's Ritz Carlton hotel — where celebs and other bold-face names can get "gifts" …

Britney Stops Wiggin' Out!  —  TMZ has learned that Britney Spears' new long blond locks aren't a wig.  Stop the presses!  She has new extensions!  —  A stylist from Heavener Salon in Lake Forest, Calif., tells TMZ she spent two entire days setting, matching and dyeing extensions for Britney's short hair.

Bruce Willis is a Pimp  —  Bruce Willis, 52, is now dating Playboy Playmate Tamara Witmer, 23 (which makes her only 5 years older than Willis' daughter, Rumer), after the two met at the Peninsula Hotel in Los Angeles.  The New York Daily News reports:

Who nose what's up with Kate?  —  The spectre of Kate Moss' drugs scandal will no doubt follow her to her grave.  Especially if she insists on appearing in public with obtrusive white blobs poking out of her nose.  —  Supermodel Kate, 33, was seen with boyfriend Pete Doherty at a gastropub in Notting Hill …

SKIPS SHOW AND LOSES FLACK  —  TEJ Herring, the longtime publicist for wacko comic Andy Dick, quit yesterday, less than an hour before Dick was to appear on the CW11 "Morning News" and then be feted at a roast on Howard Stern's Sirius satellite radio show.  Dick was a no-show for the Ch. 11 gig.

EXCLUSIVE: Screech Inching Closer To Inevitable Death-By-Beatdown Scene On Celebrity Fit Club  —  You might remember a few weeks back when Dustin Diamond almost jackassed his way into the beating of a lifetime at the hands of his castmates on this season of our own Celebrity Fit Club.

Britney's rehab boyfriend back at Promises!  —  It looks as if Britney Spears is losing another boyfriend — this time to rehab.  —  Howie Day, 26, whom Britney met during her stint at Promises rehab facility from Feb. 20 to March 20, has checked himself back in to the program, Life & Style has learned.