LANCE: WHY SHERYL AND I SPLIT  —  LANCE Armstrong is blaming the constant tick, tick, ticking of Sheryl Crow's biological clock as the key factor in their break-up three years ago.  —  In “Lance,” out in July from Da Capo, the Tour de France legend tells author John Wilcockson …

Dina Lohan Defends Her Parenting Skills  —  Dina Lohan is slamming recent reports that question her parenting skills and claim that her 15-year-old daughter, Ali, is socializing instead of studying.  —  “Ali is in a home-schooling program.  She has never been pulled out of school,” Dina tells PEOPLE exclusively.

Kendra Wilkinson Recalls Hank's First ‘I Love You’  —  For Kendra Wilkinson, nothing says romance like dirt.  —  The Girls Next Door star recalls that the first time fiancé Hank Baskett professed his love for her was during a vacation to Cabo San Lucas where they went off-road riding in four-wheelers.

Did Sean Penn leave Robin Wright for Natalie Portman?  —  Star Magazine is alleging that one of the biggest factors in Sean Penn and Robin Wright Penn's recent separation is none other than Natalie Portman.  In mid-March, there was a rumor that Sean and Natalie were caught making out at the Sunset Tower Hotel.

Singer Rihanna Honors 6-Year-Old Fighting Cancer  —  On Thursday, Rihanna made another rare public appearance, honoring 6-year-old Isabelle Huurman, who has pleaded publicly to find her best friend, leukemia patient Jasmina Anema, a bone marrow transplant.  —  “I am so honored to be here to present …

More Stolen Nude Cassie Photos Leaked — Now With Puss!  —  Another naked Cassie photo found its way online last night, this one far more graphic and explicit than the first two.  Let's just say you'll know without a shadow of a doubt that Cassie is a female after viewing this photo.

Megan Fox Finds Sex-Symbol Role Comes Naturally  —  She's a staple in men's magazines and was named FHM's Sexiest Woman in the World for 2008.  But Megan Fox says she doesn't know how to deal with the attention.  —  “If you know how to take control of [being a sex symbol], then it can be powerful …

Lindsay Throws Eggs At The Paparazzi  —  The headline pretty much sums it all up!  —  Lindsanity went on the attack last night.  —  Check it out (above)!

Paula Abdul: No Painkillers, No Rehab  —  UPDATE: Added Abdul in a statement today: “I want to make it perfectly clear to everyone that I have never been addicted to or abused drugs in my life,” Abdul said.  “I have never been drunk.  I have never entered a rehab or detox treatment center.

EXCLUSIVE: Gossip Girl's Leighton Meester featured on Cobra Starship's Hot New Single  —  Ryan world premiered Cobra Starship's highly anticipated new single “Good Girls Go Bad” on his radio show Friday.  The song features actor turned recording artist Leighton Meester of Gossip Girl fame …

Paris Hilton Admits She Uses “Google” Instead of a Diary  —  Paris Hilton doesn't keep a diary.  —  She just Googles herself.  —  The 28-year-old heiress — who is being sued for $8 million for failing to promote her 2006 comedy Pledge This! — was asked by lawyers during a pre-trial hearing …

Keanu Reeves in for new ‘Jekyll’  —  Actor to star in adaptation from scribe Justin Haythe  —  Universal is developing a modern retelling of the classic novella “The Strange Case of Dr. Jekyll and Mr. Hyde,” with Keanu Reeves attached to star and Justin Haythe, writer of “Revolutionary Road,” penning the script.

HAYDEN'S A SEX FAN  —  HAYDEN Panettiere has her priorities.  At a recent Highline Ballroom show, the perky “Heroes” star was overheard talking to a friend about “Californication” star David Duchovny, who checked himself into rehab for sex addiction last year.

Primetime Pilot Panic: New CW Hot List; Yes To ‘Melrose Place’, No To ‘Gossip Girl’ Spinoff, Maybe To ‘Vampire Diaries’  —  This updates my previous Primetime Pilot Panic: The Hot List  —  OVERVIEW: Everyone laughs about The CW but its development is praised this season for being very targeted.

Irv Gotti Says He's Dropping Ashanti From The Inc.  —  ‘The relationship has run its course,’ label head says.  —  Irv Gotti says he and Ashanti, the Princess of the Inc., will soon be parting company.  He said they haven't been on speaking terms for some time, and the label head/reality-TV star …

Sacha Baron — Anal Bleaching Was Pain in the Ass  —  He was simply trying to bleach the hair around his batcave for a movie role — when Sacha Baron Cohen reportedly broke out in a rash so bad, he couldn't sit for days.  —  Several British reports claim Cohen, who was prepping to play …

Kiefer Sutherland Surrenders to Police  —  Kiefer Sutherland, May 7, 2009  —  Kiefer Sutherland was charged Thursday with misdemeanor assault for allegedly headbutting a fashion designer at a New York party.  —  Wearing a black overcoat and carrying an umbrella, the 24 star, 42 …

Daisy de la Hoya 911 Call — ‘Possible Overdose’  —  TMZ has learned VH1 reality star Daisy de la Hoya was rushed to the hospital early this morning after paramedics responded to a 911 call for a “possible overdose.”  —  A source close to the situation says friends called 911 …

Heidi Montag To Pose For Playboy  —  Heidi Montag,Spencer Pratt,The Hills,Playboy  —  Opponents - and even some fans - of “The Hills” might think viewers have seen too much of Heidi Montag.  —  But now, it appears people are about to see a lot more.  —  Heidi will appear in an upcoming issue …