Justin Bieber Collapses In London — Hospitalized  —  COLLAPSES IN LONDON  —  HOSPITALIZED  —  EXCLUSIVE DETAILS  —  Justin Bieber was taken to a hospital in London moments ago ... after collapsing backstage during a concert ... TMZ has learned.  —  A source close to Justin tells us …

Kelly Osbourne Hospitalized After Seizure  —  HOSPITALIZED  —  After Seizure  —  EXCLUSIVE DETAILS  —  Kelly Osbourne was just rushed to an L.A. hospital after suffering a seizure while taping her show “Fashion Police.”  —  An ambulance rushed to the scene and Kelly was taken away by stretcher.

Chris Brown EXPLODES AT VALET ... Over $10 Service Charge  —  EXPLODES ON VALET  —  Over $10 Service Charge  —  EXCLUSIVE  —  11:50 AM PT — TMZ has obtained NEW VIDEO of the Chris Brown valet incident ... in which it's clear — BROWN THREATENED THE VALET.

Joy Behar Leaving ABC's ‘The View’  —  UPDATE 4:15 PM: ABC just released to Deadline a statement about Joy Behar's exit from The View.  “Joy Behar has been instrumental in the success of The View from the very beginning.  We wish her all the best in this next chapter, and are thrilled that we have her for the remainder of the season.”

EXCLUSIVE: Kim Kardashian rushed to doctors with scare after returning from Paris Fashion Week  —  Kim Kardashian was rushed to a doctor in Los Angeles on Tuesday night when she feared she was having a miscarriage after returning from Paris fashion week, Page Six can exclusively reveal.

Miley Cyrus NO Engagement Ring — Trouble in Paradise?  —  NO Engagement Ring  —  ... Trouble in Paradise?  —  Miley Cyrus made a HUGE statement last night without ever saying a word ... 'cause she went out in public WITHOUT her engagement ring ... in the wake of rumors her fiance cheated on her.

Demands Spousal Support from Ashton!!!  —  EXCLUSIVE DETAILS  —  Demi Moore has filed legal docs responding to Ashton Kutcher's divorce petition ... and get this — she wants spousal support and she's worth WAAAAY more than him.  —  Sources connected with Demi tell TMZ …

Lil Twist Wrecks Justin Bieber's Fisker — Then Flees  —  If Justin Bieber continues to trust Lil Twist with his ultra-expensive cars, then he deserves what he gets, because TMZ has learned Twist had yet another mishap, and this one involves a hit and run.  —  We've learned Lil Twist …

Disney: No Place Like Another ‘Oz’ Sequel (EXCLUSIVE) … Disney already is prepping a return to Oz.  —  Studio has commissioned a follow up to “Oz the Great and Powerful” from screenwriter Mitchell Kapner, who co-wrote the first film with David Lindsay-Abaire.

How Disney Bought Lucasfilm—and Its Plans for ‘Star Wars’  —  One weekend last October, Robert Iger, chief executive officer of Walt Disney (DIS), sat through all six Star Wars films.  He'd seen them before, of course.  This time, he took notes.  Disney was in secret negotiations to acquire Lucasfilm …

Shia LaBeouf Still Leaking Emails From Alec Baldwin  —  “If 10,000 people forwarded that email, Bill Gates would've gave us free computers AND YOU RUINED IT!”  —  Two weeks ago, Shia LaBeouf quit the Broadway play Orphans over “creative differences” with Alec Baldwin that he made public …

Jessica Simpson Accidentally Reveals She's Having a Boy  —  Jessica Simpson is in fact expecting a baby boy, she confirmed — accidentally! — on Wednesday night.  —  The singer and actress, 32, let the news slip on Jimmy Kimmel Live that daughter Maxwell Drew, 10 months, is getting a little brother …