Kate and Sienna in catfight  —  NO wedding is complete without a good old-fashioned bust-up.  —  And KATE MOSS and SIENNA MILLER kept the tradition alive at a mutual pal's reception with a foul-mouthed catfight — over RHYS IFANS.  —  I bet the Welsh scarecrow never thought he'd find himself …

Injured George Clooney, Girlfriend Attend Premiere  —  George Clooney was still sore and girlfriend Sarah Larson hobbled on crutches and hid a black eye behind makeup from their motorcycle accident as they attended the Monday night premiere of Clooney's Michael Clayton.

Scientists discover the formula for perfect breasts  —  Whether small or large, pert or pendulous, they all have their admirers.  —  But there is one type of breast that most approaches perfection, a cosmetic surgeon claims.  —  The model mammary apparently has a nipple that points slightly skywards …

Posh Looks Like A Fool  —  Posh can't dress!  She can't, sorry.  She buys nice and expensive pieces, but she can't put them together for s**t!  She's like a 4-year-old boy trying to put his own crap together.  —  That hat does nothing for her pig nose.  She looks like one of the three little pigs …

'INDIANA' BLABBER FACES DOOM  —  A BIG-mouthed extra working on the new "Indiana Jones" flick has blown his fledgling movie career to smithereens by spilling the film's major plot points.  —  Director Steven Spielberg and producer George Lucas made the entire cast and crew of …

Larry Birkhead Sued by Ex-Lawyer Debra Opri  —  There's a new chapter in the ongoing drama in the aftermath of Anna Nicole Smith's death.  —  Attorney Debra Opri, who had represented former Smith lover Larry Birkhead until they parted ways last March, filed a defamation lawsuit against Birkhead Monday in an L.A. court.

Lindsay Lohan's Rep Denies Lohan's Involvement in Divorce  —  A British heiress worth $1.4 billion has started divorce proceedings after reports surfaced that her husband, Dead Stays Alive frontman Tony Allen, had sex with Lindsay Lohan while staying at the Cirque Lodge rehab clinic.

Justin Timberlake Cancels Gig Due To Hangover  —  Pop superstar Justin Timberlake has confessed he canceled two recent concerts because he was "hungover."  —  The Sexy Back hitmaker was due to perform gigs in Sacramento and San Jose, California earlier this month, but canceled both at the eleventh hour …

Rudolph Not Returning to 'SNL'  —  Just five days before the season premiere, NBC learned that Maya Rudolph is not coming back for an eighth season of ''Saturday Night Live''  —  It can't be!  But it is: EW has learned that contrary to published reports, Maya Rudolph is not returning to Saturday Night Live for an eighth season.

Charlie Sheen: I Will Not Dignify the Majority of These Allegations Set Forth By Denise Richards'  —  In a statement to "Extra," Charlie Sheen spoke out about allegations his ex-wife Denise Richards made in recent court papers.  —  "I will not dignify the majority of these allegations set forth …

David Hasselhoff's Ex-Wife Booked for Hit-and-Run  —  David Hasselhoff's ex-wife Pamela Bach surrendered Monday to a Van Nuys, Calif., jail to be booked for a misdemeanor hit-and-run charge.  She was released on her own recognizance shortly thereafter.  —  In January, Bach, 44 …

Tina Yothers Welcomes a Baby Boy  —  Former Family Ties star and Celebrity Fit Club winner Tina Yothers, 34, gave birth to a baby boy Monday morning, PEOPLE has confirmed.  —  She and husband Robert Kaiser welcomed Jake Kaiser, weighing in at 8.8 lbs., at 6:08 a.m. at an Orange County hospital.

Meg on Alleged Sex Tape: I Think I Smell a Rat  —  The Internet's a-blazin' this morning with reports of a sex tape featuring Meg White of the White Stripes.  —  TMZ did a little investigating, and we've learned it's most definitely NOT her in the tape.  Fell in love with a girl!

X17 XCLUSIVE - It's Britney, B*tches!  —  Britney just got back from her weekend getaway to Atlanta, and it looks like she's back to being brunette as well!  Brit and Alli (and puppy London!) spent a girl's weekend shopping, relaxing, gossiping and watching tv.

Halle Berry Gets Pampered While Pregnant  —  Gabriel Aubry has been pampering girlfriend Halle Berry through the early stages of pregnancy - massaging her feet and satisfying her food cravings.  —  "She does crave pickles," he told PEOPLE at Macy's Herald Square in New York for "The World of Calvin Klein" event.

Milo Langdon: Grandpa Steven is so Cool!  —  Liv Tyler takes son Milo, 2 1/2, on stage with her to watch granddad Steven Tyler (lead singer of Aerosmith) rock out during a concert at the Molson Amphitheater on Monday in Toronto, Canada.  Steven is 59!!!!  —  Milo wore protective noise …

Lauren Conrad and Audrina Partridge Maxim Video  —  So first we had Nicole Richie pregnant bikini pictures, and then what may or may not be a Meg White sex tape, and now I can finally offer you a post that features some attractive girls.  Specifically Lauren Conrad and Audrina Partridge from The Hills …

Feisty Mel B spices up the dancefloor on Dancing with the Stars  —  Dressed in her trademark leopard-print, Mel B threw down the gauntlet as she danced her way into joint-second place - and won praise from the judges for her 'feisty performance' on hit US show Dancing with the Stars.

Dita strips for ABC lesson  —  She's unlike any teacher you've ever had, but her lesson is as easy as ABC.  —  Burlesque stripping queen, Dita Von Teese, stands at a classroom blackboard wearing her signature corset, in a captivating new ad for PETA.  —  The animal welfare group …

HEATH'S STILL ON THE PROWL  —  SORRY, Helena Christensen, but it looks like Heath Ledger isn't ready to commit.  After breaking up with baby mama Michelle Williams, Ledger was spotted locking lips with the Danish pastry.  Our spies, however, spotted him leaving the Beatrice Inn …