Shiloh, 5, and Vivienne, 3, enjoy a day out with their mom. (rod-kmm-ionu/X17online.com)

When you're the child of Angelina Jolie and Brad Pitt, your every move is watched every second of the day. So it's no surprise that the Saturday afternoon outing Vivienne, 3, and Shiloh, 5, made to see "The Secret World of Arrietty" with their mom at the El Capitan Theatre in Hollywood was headline-worthy. This time it was because (gasp!) little Viv appeared to be wearing red lipstick for the matinee. Vivienne, Angie's biological daughter and twin sister of brother Knox, was also decked out in gold lame pants, a black-and-white dress, black coat, and red shoes.

Natalie Portman takes a hike with baby Aleph. (Fabio/X17online.com)

Natalie Portman didn't have to leave 7-month-old son Aleph home with his dad when she went for a hike with some pals at Hollywood's Runyon Canyon on Thursday. She simply strapped the little guy to her chest and headed off! You could barely get a look at baby Aleph (other than those adorably chubby little legs and hands) as his mom shielded him from the sun (and probably photographers).

Alyson Hannigan shops with Brad Goreski. (Splash News)

Alyson Hannigan wants to make sure she's one fashionable pregnant lady. The "How I Met Your Mother" actress brought along her stylist, Rachel Zoe's former assistant-turned-reality star Brad Goreski, for a maternity shopping spree at Pea in the Pod in Santa Monica, California, on Thursday. The fashionable duo joked and laughed as they combed through the racks of clothes. Goreski, the star of his own Bravo series, "It's a Brad Brad World," picked out a few different items, including a black-and-white striped sweater dress, which he helped up to Hannigan, who's due in the spring with her second child.

Courtesy of Ocean Drive magazine

Has former wild child Nicole Richie passed on that trait to her children? According to the fashionista, she lucked out with her eldest, lookalike daughter Harlow, 4, but 2-year-old Sparrow is definitely giving her a taste of her own medicine. While "careful" Harlow "doesn't make a move without fully thinking about what the consequences would be," her son "has my personality," Richie says in the March issue of Ocean Drive. "He's just wild." But the former reality star — who next appears in NBC's "Fashion Star," which premieres March 13 — says she is buckled in and ready for the ride little Sparrow takes her and husband Joel Madden on. In his short time on this earth, the little boy has already "had broken fingers, we've been to the hospital," she says. "You cannot take your eye off of him for a second. He is just a full, free spirit."

Snooki is pregnant, according to reports. (Jeff R. Bottari/Getty Images)

If the rumors are true, the party's over for "Jersey Shore" star Nicole "Snooki" Polizzi. The petite tanzilla is expecting a baby with her beau Jionni LaValle, and is about three months along, according to the New York Post. The newspaper adds that Snooki, 24, plans to cash in on her status as a reality star mom-to-be and become "the next Kourtney Kardashian." She's even already "brokered a deal" to reveal the news in Us Weekly.

Hannigan is pregnant with baby #2. (Albert L. Ortega/Getty Images)

Hannigan is pregnant with baby #2. (Albert L. Ortega/Getty Images)Alyson Hannigan's children will not be following in their famous mother's footsteps any time soon. The "How I Met Your Mother" star was just 4 when she made her acting debut in a 1978 Duncan Hines cookie mix commercial -- but she says she won't allow her kids to do the same if they're enticed by the bright lights of Hollywood at a young age. "I definitely would want them to wait," the actress, who is due to give birth to her second child in the spring, tells omg!. "Saty [daughter Satyana, almost 3] is sort of the prime candidate for acting … so hilarious and so expressive." And she can even cry on cue! "Early on, I think she was just over a year and just starting to talk," explains Hannigan, "she was in my closet and she was looking at herself in the mirror. She was really close up and studying [herself], and then she started to tear up. I was like, 'Honey, what's wrong?' And she says, 'Look, Mommy, I'm

The next day Beyonce took her daughter for a solo stroll. (Doug Meszler/Splash News)

For Beyonce and Jay-Z fans, it's been all about the musical power couple's baby daughter Blue Ivy lately. The bundle of joy has been making headlines since the moment she came into the world on January 7. First the media couldn't get enough of the fact that her parents paid to combine multiple hospital rooms into one luxurious private birthing suite (and that new parents were voicing complaints over being bothered by the couple's security team inside the maternity ward). Then came baby's first photos -- released on a blog set up by Mr. and Mrs. Carter -- featuring the adorable newborn (with a pretty full head of hair) in the arms of mom and dad. And, now, finally, the moment we've been waiting for -- little Miss Blue makes her first public appearance at 7 weeks old.

The infant accompanied Beyonce and Jay-Z to Italian eatery Ristorante Sant Ambroeus in Manhattan's West Village on Saturday afternoon, as the family bundled up in winter jackets and wrapped the baby in a black

Survivor/PacificCoastNews.com
Sandra Bullock is a mom on the go. The Oscar-winning actress dropped her adorable 2-year-old son Louis off at preschool in Los Angeles on Thursday, and from the looks of her outfit headed off to the gym for a workout. Clad in black spandex pants, neon sneakers, a warm-up jacket, and baseball cap, Bullock was all smiles as she said goodbye to little Louis, who was equally stylish in a cute T-shirt emblazoned with a bulldog.