DEMI MOORE HOSPITALIZED, ENTERING REHAB: Two month after her marriage broke down DEMI MOORE appears to have suffered a break down of her own. Moore was rushed to the hospital Monday night after paramedics responded to a 911 call at her L.A. home.

A source told E! Online it was a female friend of Demi's who called 911 and told the operator Demi was shaking and, quote, "acting like she was suffering from a seizure." And while Demi's rep blames it on "the stresses in her life right now," TMZ says the real issue was substance abuse and that Moore is heading into a treatment facility. Demi's rep confirms she will be seeking professional help to treat, quote, "her exhaustion and improve her overall health."

Meanwhile ... soon-to-be ex ASHTON KUTCHER tweeted this picture of himself in Sao Paulo, Brazil having a ball during a summer storm. In his defense, he was oblivious to the Demi drama at the time.


HEIDI KLUM INITIATED SPLIT: According to 'Life & Style' magazine, the HEIDI KLUM/SEAL split was Heidi's idea. The mag's source says she was the one who initiated the split, and, quote, "wanted to be in charge and make sure that he knew that she was leaving him." No word on why she walked, though.

The magazine adds that who gets what will not be an issue as the couple did have a pre-nup in place. Klum is reportedly worth around $70 million -- Seal, around $15 million.

DID SEAL CHEAT???!!!: On 'The Ellen DeGeneres Show' yesterday, Seal had nothing but kind words for Heidi. He said, "The thing I'm most proud about this great woman who I married is that together she has given me four incredible gifts...four beautiful children. She still, in my opinion, is the most wonderful woman in the world."

And what did he sing on Ellen? Al Green's "Let's Stay Together," ironically enough!

JUST ASKING: He's refusing to remove his wedding ring, he's singing 'Let's Stay Together' on T.V. ... he definitly cheated, right? I mean those are men in the dog house moves, don't you think?

IT'S ON BETWEEN CHELSEA HANDLER AND JOAN RIVERS!!! WHO YOU GOT???: Two of the snarkiest women in comedy could be on the verge of the chick fight to end all chick fights!!! It is sooo on between JOAN RIVERS and CHELSEA HANDLER after each went on the Howard Stern radio show on successive days and worked each other over hard!!!

Handler started the whole thing Monday when she brought up a past event for the E! network that they both attended. Said Chelsea, "Joan Rivers gets up and [she sarcastically says], I'd like to thank Chelsea Handler for giving me a career in comedy. And congratulations on your stage Chelsea because I don't even have a dressing room.' And I'm like, [eff] off! Joan Rivers? What the [eff] do I care about Joan Rivers?” she then added. “I don't think about her ever."

So yesterday Joan went on the same show and fired back calling Chelsea a drunk and accusing her of sleeping her way to the top.

She said, quote, "The girl made it on her back [effing] the president, we all know that, of the network. Number two, she's fine, she's ordinary. She's not a genius. Joan then added, quote, "Whatever she is, she's a drunk. I don't wish her good luck, I don't wish her bad luck. I don't think she's particularly funny. But don't you come after me, you whore!" Okay, so .. Who You Got? Put me down for Joan. Sorry, Chelsea, but you brought a knife to a gun fight.

DID CAMERON DIAZ GET HER FACE DONE? WE REPORT, YOU DECIDE: CAMERON DIAZ'S face is looking a bit different thise days, and Radar Online thinks it's because she got her face did! The gossip site spoke with a plastic surgeon who thinks she's definitly had some work done. The doctor thinks her excessively smooth forehead suggests "overdone botox," and her smooth, shiny face could be the result of "laser treatments or chemical peels."

Here's a side by side. The left was taken yesterday, the one on the right last August. What do you think?

WHO DAT?: 'Sex and the City' vixen CYNTHIA NIXON debuted her new bald look yesterday on "Live! With Kelly."  Nixon went all chrome dome for a Broadway show in which she plays a woman with cancer ...

IN DENIAL - VANESSA PARADIS: JOHNNY DEPP'S baby mama, VANESSA PARADIS, is denying rumors she and Depp are breaking up. In an interview yesterday on French TV, Paradis called the story "false" and presumed the media fabricated the story "because the Queen of England didn't lose her teeth this week and there's nothing happening."