Hollywood Dirt: JLo Shuts Matt Lauer Down, More Forthcoming on David Letterman + The Topless Kardashians Photo!!!

J.LO VOWS TO NEVER DISCUSS DIVORCE IN PUBLIC AGAIN: JENNIFER LOPEZ sat down with MATT LAUER on the “Today” show yesterday to talk about “American Idol” but Lauer had other ideas. Instead of staying on task, he quickly steered the conversation in the direction of her love life.

Lauer tried to get J.Lo to talk about her interview with Vanity Fair where she opened up about walking away from her marriage to MARC ANTHONY.

When asked if she could elaborate on the interview, Lopez replied, "No I can't," adding, "Because everything I wanted to say about the divorce I said in that article, and Marc and I agreed we weren't going to talk about it publicly again because it really is our personal life.

JLo was a bit more forthcoming, and definitely had more fun later in the day when she paid DAVID LETTERMAN a visit ...

KARDASHIANS GO TOPLESS!!! KIM, KOURTNEY, AND KHLOE were caught on camera topless, and we have the photo!!! Okay, it was for the new ad for their line of jeans and their naughty bits are covered ... but still!

JESSICA SIMPSON SHOWS US HER TWEETS: Check out the pic JESSICA SIMPSON Tweeted yesterday of her "pregnancy face." Jess captioned the photo: "Woke up looking like the lip injection fairy visited me in the night! Is this how pregnancy face begins?! Yikes!"

On a related note ... Look how scary big Jess and  Jessie's Girls are getting.

DEMI MOORE GETTING ‘SPIRITUAL’ HELP: Although DEMI MOORE'S exact whereabouts in the wake of her recent hospitalization are unknown, sources told E! she IS getting help in the form of "spiritual counseling." The E! insider adds that reports of Moore having entered a residential treatment program, however, are untrue.

Meanwhile … ASHTON KUTCHER has yet to officially commented on Demi’s drama, but he did post a page scanned from the book "The Four Agreements" on his Facebook along with the words, "Friend sent me this today thought it was valuable to share." The rules include "Avoid using the word to speak against yourself or to gossip about others," and "Nothing others do is because of you."

RELATIONSHIP REPORT:  How's this for a downgrade? Elisabetta Canalis has reportedly gone from George Clooney to Jackass Steve-O.

Rumors of their romance have been swirling for weeks and the two were spotted together at a West Hollywood hair salon over the weekend. Neither has confirmed if they're more than buds. I suppose when you've dated Clooney, there's nowhere to go but down.