Dressed in matching mommy-and-me moccasins, Kimberly Stewart showed off 4-month-old daughter Delilah for the first time in public, as she met Jack Osbourne for a lunch date in Beverly Hills, on Saturday.

No doubt the proud mamma was offering Jack some parenting advice -- he's about to become a daddy for the first time next year!

Osbourne broke the news that his fiancée, Lisa Stelly, is expecting their first child during an interview with Piers Morgan in October.

Jack and Kimberley actually dated from 2003 through 2004, and have remained close friends since their split.

After successfully completing her treatment last year, Demi Lovato returned to the center where she had sought help, to share her motivational story with women who are struggling with similar issues.

The "Skyscraper" singer, who received treatment for an eating disorder and emotional issues in 2010, Tweeted Sunday afternoon:

"Wow what an inspiring day... Many tears were shed and many memories were brought back at Timberline Knolls today ... Today I went back to the treatment center I went to last year, to speak to the beautiful women fighting their inner demons ... I was so honored to be able to share my story and let them know that it gets easier. Life is beautiful.... You are worthy of it."

The 19-year-old former Disney star has made great strides since checking out of the rehab program in January, and she's moved on with a new relationship. Lovato has been dating That 70s Show star Wilmer Valderrama since February.

Demi concluded her day with the Tweet, "Please say a prayer for all of those struggling with eating disorders, self harm, mood disorders, and substance abuse."

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Amid the super success of Breaking Dawn, Robert Pattinson seems to be letting fame go to his head ...

The actor, famously tied to co-star and real-life girlfriend Kristen Stewart, was out last night with another girl -- Sarah Roemer of the 2007 film Disturbia!

We spotted RPatz at the hip, Los Feliz bar La Poubelle, surrounded by admiring female fans.

A source inside the bar last night tells us:

"Rob was literally fending off advances from girls, left and right. Every female in the bar wanted to get close to him and for the most part, he politely ignored them but one girl caught his eye and she left with him!"

The 27-year-old actress starred opposite Shia LaBeouf in the 2007 thriller. She was also in the films Locked Up, Waking Madison, and The Con Artist last year. Her TV credits include The Event and Hawaii Five-O. Roemer began her career as a model when she was discovered in her hometown of San Diego in 2000.

Could Pattinson and Stewart's long-time relationship be on the rocks??? Is Sarah Rob's new girlfriend???

You'll almost NEVER see Jennifer Garner or Heidi Klum send the nanny to pick up the kids at ballet or karate ... these moms are totally hands-on!

A pregnant Jen picked up daughter Violet from ballet on Saturday, with younger Seraphina in tow and it looks like the little one wants to be just like her older sis, as she tried to emulate Violet's arabesque while they walked back to the car!

And Heidi Klum wore her usual boho attire as she shopped with daughters Lou and Leni while son Henry was at karate. The girls seem to have better fashion sense than their mom ... little Lou's animal prints and Leni's matching green boots and hair bow are absolutely adorable, while Heidi's long shirt and sweater cover up her awesome supermodel bod.

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After his relationship with Cameron Diaz ended recently, Alex Rodriguez is wasting no time getting back on the dating scene ...

We spotted the baseball star out biking in Miami Saturday with a hot blonde. Could she be his new Cam???

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Lindsay Lohan is desperate to revive her career and, according to a new report, she thinks reality TV in England will do just that!

We caught the actress out last night at the Chateau Marmont in LA, driving home in her Porsche with a rosary hanging from the rear view mirror. Is she praying to God she'll get work???

Well the Daily Mirror is reporting Lindsay's in talks to join Celebrity Big Brother in the UK, if the US court will let the troubled starlet leave the country.

Producers have already met with Linds in LA, according to the Mirror, and have even started shooting background footage of her in preparation for the January series launch. An insider tells the paper:

"Lindsay would be an absolutely amazing signing for us. She’s a Hollywood A-lister and everyone knows about all the trouble she’s been in. She’s a fiery character too, so there are sure to be a some major clashes with other celebs if we get her in the house."

A source from the network says Channel 5 is doing "everything possible" to make it happen.

Question is now ... how can we hack our satellites to get that station in the US! Lindsay on reality TV would be the best Christmas gift EVER!

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Miley Cyrus is NOT into Hollywood haute couture ... this country girl prefers comfort over style. In fact, the singer/actress kicked off her sky-high winter white Christian Louboutins yesterday in favor of going barefoot!

Seems at Panera Bread the no shirt, no shoes rule doesn't apply to superstars!

Oh, and when we asked Ms. Miley about her recent birthday party during which she called herself a "stoner," the 19-year-old wasn't too interested in giving us a reply. Check out SNL's parody of Miley's "stoner" birthday speech and OUR video of the Cyrus avoiding commenting ...

Gwen Stefani may be chic and super rich, but that doesn't mean she's above getting a good deal when she shops for Christmas decorations!

The singer/fashion designer took sons Kingston and Zuma to Target (where they carry her new Harajuku Mini line), Big Lots and Sears Saturday, to pick up some fake snow, tree ornaments, lights and other holiday trimmings for her home.

We love a smart shopper! ... Especially one with such adorable tots!