OK!  Exclusive: Lindsay's Secret Sister!  —  Everyone knows that Lindsay Lohan has a little sister Ali, but OK! can now exclusively reveal that there is yet another, secret sister — that even they have never previously known existed!  —  Linds' father, Michael Lohan, has admitted to OK! …

Uma Thurman engaged to boyfriend Busson  —  Uma Thurman, who played the sword-wielding Bride in “Kill Bill,” is taking another stab at marriage, now that financier Arpad (Arki) Busson has proposed, her rep confirmed to the Daily News.  —  Busson, who has two children with supermodel Elle Macpherson …

K-Fed Attorney: Mediation With Brit “Positive” Step  —  Kevin Federline wants Britney Spears to once again play a major role in their children's lives.  Just not a bigger role than his.  —  K-Fed's attorney, Mark Vincent Kaplan, spoke exclusively to E! News in the wake of Thursday's …

Spencer Pratt: Actress Mary-Kate Olsen Is “the Less Cute Twin”  —  Hills star Spencer Pratt is flattered that Mary-Kate Olsen commented about his temper to David Letterman Thursday.  —  “I don't really get why she'd use my name to get press for her little indie film that no one's going to see,” he told Usmagazine.com Friday.

Setting The Record Straight  —  We're not quite sure why he felt compelled to do this, but Russell Simmon's publicist just sent us the following open letter from the hip hop mogul.  —  He says:  —  “Friends of mine have forwarded me gossip online about my custody agreement details with Kimora.

Madonna: I want a divorce  —  WORLD EXCLUSIVE Madonna and Guy to end marriage after seven tempestuous years  —  Madonna told Guy Ritchie she wants a divorce after the couple agreed they had fallen out of love.  —  They admitted to each other that their seven-year marriage was doomed because they had simply drifted apart.

J.Lo, bark over $5M for bite on jet  —  A flight attendant claims Jennifer Lopez's guard dog chomped her leg on a plane trip two years ago, and now she wants to take a $5 million bite out of the singer's pocketbook.  —  Lisa Wilson, 40, filed a suit in Brooklyn Federal Court Thursday …

She's Just Being Miley  —  Miley Cyrus is on the cover of the new issue of Billboard, and PerezHilton.com has an exclusive preview of the article.  —  Our favorite bits are when the Disney slut talks about her passion for songwriting and the such.  —  She's such an “artist.”  —  Hey, at least she's ambitious!

Paris Hilton donates to LA's Childrens Hospital  —  LOS ANGELES (AP) — Paris Hilton is making good on her promise to become a better person.  —  The 27-year-old socialite made an “extremely generous” donation toward the construction of a medical building at Childrens Hospital Los Angeles …

Mel Gibson tried to set Britney Spears up with one of his rehabbed sons  —  Mel Gibson has twin sons who turn 26 this year, Edward and Christian, who both have stints in rehab.  Ed was out of rehab late last year for an alcohol and cocaine addiction, and Christian got a DUI in 2006 and checked into rehab in late January of this year.

Dirty Ass Wonky  —  Hahaha!  Wonky looks like she got sprayed down with wet doody.  Doody tan!  It looks like the liquid caca got all over her dress too or maybe that fugly rag just came that way.  —  She looks like one of Tommy Girl's used condoms.  Nast.

Will Smith has found the magic formula  —  LOS ANGELES — The biggest star on the planet is sucking his thumb.  —  “Damn,” Will Smith says on the set of Hancock, trying to shake the pain of a thumbnail that split in two as he was thrown through a mock wall.  “All these crazy stunts we're doing, and this is how I get hurt.

Paris Pens Her Own Theme Song  —  Keep your ears perked, ladies and gentlemen, because the musical talents of Paris Hilton are heading back to the airwaves.  And this time, she's teaming up with her musician boyfriend, Benji Madden, to make it happen.  —  Paris tells E! News exclusively …