Spears threatens Paris with lesbian footage  —  Britney Spears is threatening to release video footage of one-time friend Paris Hilton in a lesbian romp with a mutual pal - if the socialite doesn't start treating her better.  —  London's Daily Mail newspaper has been alerted to a letter Spears' camp …

NOT OUR DONALD  —  DONALD Trump might be generous, but he didn't tip a Santa Monica waiter $10,000 on Monday.  The tycoon says he wasn't even in California.  Derober.com published a copy of a MasterCard receipt showing that Trump tipped $10,000 on an $82.27 bill after dining at the Buffalo Club, but Trump told Page Six it was a hoax.

First Peek!  Reese Witherspoon and Vince Vaughn Kiss  —  Reese Witherspoon and Vince Vaughn shot a romantic kissing scene on a San Francisco trolly for their upcoming comedy Four Christmases Thursday.  Filming happened during a heavy rain.  —  As Us first reported, the two play a couple …

Kiefer Sutherland a 'Model Prisoner'  —  Kiefer Sutherland, starting Day 3 of his 48-day sentence for DUI and a probation violation, is a "model prisoner," says a spokesman for the Glendale City Jail.  —  "He's not happy to be here," Officer John Balian says, "but you can tell from his demeanor …

Bloated Lisa Marie Presley now looks worse than Elvis  —  Her smouldering gaze and curled lip leaves no doubt that Lisa Marie Presley is every inch her father's daughter, but it now appears she's also inherited a few of Elvis' less appealing qualities.  —  The 39-year-old looked bloated …

OMG!  It's The Sex And The City Movie Trailer!  [Clips]  —  The trailer for Sex and the City tells us both nothing and everything we need to know about the movie, which opens in May: "Friends are forever"; giant flower brooches; kissing Big; wedding dress; blah, blah, blah.

New "Idol" Sex Tape: It Gets Worse for Jessica Sierra  —  Just when Jessica Sierra thought that facing eleven years in prison was the worst news of the week, the "American Idol" finalist learned that a major porn company has obtained a sex tape featuring Jess — and they're preparing to distribute it.

Ronson: 'Rude Lily ignores me'  —  Mark Ronson has lashed out at Lily Allen after she stopped returning his calls.  —  The Smile singer has been giving him the cold shoulder and even failed to show up at his BBC Electric Proms gig in London in October.  —  "She didn't come …

Victoria Beckham Says Simon Cowell's Pants Are Too Tight  —  Spice Girls star Victoria Beckham has poked fun at music mogul Simon Cowell, suggesting he has no kids because he has a low sperm count.  —  The cheeky pop star was chatting with Cowell's TV presenter girlfriend Terri Seymour backstage …

Amy Winehouse 'Happy and Psyched' About Grammy Noms, Says Producer  —  Amy Winehouse is still reeling from her recent woes - scrapping her U.K. tour and coping with her husband's incarceration.  But singer and music producer Mark Ronson tells PEOPLE that his good friend is doing well and getting …

Renee flashes her legs - and then puts her foot through her dress - on the red carpet  —  It was the kind of faux-pas one could virtually guarantee Bridget Jones would make at a film premiere.  —  Yet it might be hoped that Renee Zellweger, who plays her on screen, might have a bit more decorum.

Brit gets sold out by photog  —  Plus: Bruce Willis mortifies Rumer; weekend box-office prediction  —  Even when Britney Spears tries to do something right, things turn out all wrong.  Just days ago, Spears and her sons sat for a photo shoot on Spears' property.

Smiling With Your Eyes  —  Is that a little wig glue I see or just some shine?  Hmm....it's the latter.  Tyra Banks is perfect!  She'd never go outside the house not looking absolutely perfect.  Perfect for a wax figure.  —  Here she is smiling with her eyes at the CNN Heroes event last night.

Mischa Buys Rocker T-Shirts for Nicole Richie's Baby  —  Nicole Richie's baby can rock - and be rocked - at the same time, thanks to gifts from Mischa Barton.  —  "I got her a bunch of rocker tees for the baby, with different types of logos of rock bands on them," Barton, 21 …

Amy Winehouse performs surprise gig during six hour drinking session  —  Despite cancelling her remaining UK tour dates at the end of last month, Amy Winehouse performed a impromptu, surprise gig in London on Wednesday night during a six hour drinking session with friends.

Now I Know Where Paris Gets It From  —  Randy Jones of the Village People said he once partied with Kathy and Rick Hilton at Studio 54 back in 1977.  He said when a rock rolled off the table, Kathy and Rick snorted lines right off the floor. … Kathy and Rick deny the incident.

LC Makes 'Life-Changing' Decision in Hills Finale  —  She's not revealing many details, but Lauren Conrad says she makes a "life-changing" decision in the season-three finale of MTV's The Hills, which airs Monday—and she's happy with the choice she made.  —  "I gotta be honest …

Marilyn Manson took ecstasy; ended up in a cage staring down a baboon  —  After hearing all the stories about Marilyn Manson over the years - the type urban legends are made from, only true - nothing should really shock us about him anymore.  It's gotta suck for Manson.