Casey Aldridge is NOT the father of Jamie Lynn Spears' baby  —  The father of Jamie Lynn Spears baby is NOT boyfriend Casey Aldridge, according to shocking reports from the U.S.  —  News that Britney's sister was pregnant at 16 - under the legal age for sex in the U.S. - forced 18-year-old Casey into hiding.

Josh and Fergie Are Engaged!  —  TMZ has learned exclusively that Josh Duhamel popped the question to leading lady Fergie.  There's gonna be a W to the E to the D-D-I-N-G!  —  Josh's rep confirmed the happy news to us, and would only say the “Las Vegas” star proposed to the singer “recently” — and not on Christmas.

CELEB KIDS, 16, IN HOTEL FLING  —  Paris Hilton's younger brother, Barron, 16, is taking a page out of her partying playbook.  Sources tell Page Six that Barron is dating Skye Peters, also 16, the daughter of “Superman Returns” producer Jon Peters and his ex, Christine Peters.

Brandy Crash — Dead Woman at Fault?  —  TMZ has learned the hang-up in deciding whether to file vehicular manslaughter charges against Brandy is that Brandy may have been a victim, not a culprit.  —  A CHP source tells TMZ the woman who died in the car accident involving Brandy actually struck …

I want to be huge like Jordan  —  SOPHIE PRICE strips for her first sexy modelling shoot - and reveals the sort of curves that have made her big sister Jordan famous.  —  The pretty teen has quit her long-term hairdressing job to get a boob op and become a glamour pin-up.

Lindsay's Ex: Fame ManWhore Cashing In  —  As if bragging about their sexual adventures wasn't sleazy enough, Lindsay Lohan's rehaboyfriend, Riley Giles, is now selling off his personal photos of LiLo.  Classy.  —  The extreme sports wannabe sold a series of photos from when they were together …

I Love New York star engaged to Tailor Made  —  Tiffany “New York” Pollard — the outspoken star of VH1's hit reality show I Love New York 2 — is going to become a Mrs. after all, PEOPLE has learned.  —  Pollard, 25, weeded through 20 eligible bachelors in season 2 of her dating reality show before she finally found a keeper.

Six Naked Victoria's Secret Models?  Yes Please!  —  You'd think seeing a bunch of Victoria's Secret models in the nude wouldn't be such a big deal, considering that Victoria's Secret models already spend all their time in their underwear (yes, all their time, that's all they do, so shut up).

Jen and Courteney's Friend-ly Christmas Eve  —  Last week we were wondering if Jennifer Aniston and Courteney Cox would be spending the holidays together and it looks like we've got our answer.  Your favorite BFFs of 2007 celebrated Christmas Eve with dinner at Mastro's in LA on Monday night.

OK!  Exclusive: Jail Time for Britney?  —  Paris Hilton has done it.  Lindsay Lohan and Nicole Richie both (barely) did it.  And then there's Michelle Rodriguez, Kiefer Sutherland... Heck, this year it seems like just about every celebrity has spent a little time in the gray-bar hotel.

Jay-Z Leaving Def Jam Post  —  Jay-Z  —  He's been “big pimpin” as president of Def Jam Records since 2005, but Jay-Z is stepping down at the end of the year.  —  “Now it's time for me to take on new challenges,” he said in a statement Monday.  “I am pleased to have had the opportunity to build upon the Def Jam legacy.”

Leona Lewis Struggled To Find Simon Cowell A Gift  —  Music mogul Simon Cowell will not be receiving another pair of his trademark high-waisted trousers from British singer Leona Lewis this Christmas - because he already owns more than any man should.  —  Lewis - who recently released …

Rihanna's Booty Slip Video  —  I'm sure this is pretty old, but here's a really short clip of Rihanna showing some accidental booty while on a French TV show.  It's only a few seconds long, but anytime you're able to get a glimpse of some 19-year-old ass, you'd better appreciate it …

The Federlines' Filipino Feast  —  This Christmas, Kevin Federline seemed to have taken a page from Brad Pitt and Angelina Jolie's Pangean play book.  The doting dad had his cook, a cutie named Toni, with whom he frequently flirts, prepare a dinner of Filipino food for his family.

Model Says Woman Tricked Her Into Claiming Affair with Tony Parker  —  We were initially a bit divided as to whether married Tony Parker could be guilty of the hotel romps that were claimed by a French model.  Alexandra Paressant went to paparazzi agency X17 with an amusing tale of hooking …