Star playdates: Celebrity kids who are friends

It's one of the most famous playdates of all time — when Angelina Jolie took her six kids, Maddox, Pax, Zahara, Shiloh, Vivienne and Knox to play with Kingston and Zuma at Gwen Stefani's house in London, September 2011. The Jolie-Pitts were in town while Brad filmed scenes for World War Z. Turns out Brad's been friends with Gwen and her husband, Gavin Rossdale, for years, and now Angelina and Gwen are tight.

Among other stuff, the kids smothered finger paint on themselves (as you can see), and the ladies sent security guards for take-out from the local Wagamama noodle restaurant for dinner.

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Well, they haven't had a playdate yet. Obviously, it's a tad early; the prince is just one month old! But reliable sources have it that Harper Beckham and Prince George will spend time together. Indeed, it's said Victoria Beckham sees her daughter and Prince George as good friends in the future. 

"Sadly, Kate’s not in the position to go out for regular mummy lunches with her friends," says a source for the Daily Star. "It’s more likely that Victoria will visit Kate at her home with baby Harper. She thinks their kids could develop a great friendship in the future, just like her and Kate." You know I'll keep you posted!

Read more: They're here: Official photos of Kate, William, Prince George and the dogs>

Longtime Celebrity Candy readers will remember several photos of these two families hanging out together. 

Here they are enjoying last Easter weekend together in Napa Valley, California. It's a big crew, since both families have four kids: Chef Gordon Ramsay and his wife, Tana, are parents to Megan, Jack, Holly and Matilda; and David and Victoria Beckham are, of course, parents to Brooklyn, Romeo, Cruz and Harper. Lots of friends to play with! 

Read more: Celebrities who have lots of kids>

Apparently, there's a carpool situation we all need to know about. Jennifer Garner and Dancing with the Stars co-host Brooke Burke-Charvet shuttle each other's kids to and from school.

When asked who she'd let babysit her kids, Brooke named Jennifer. "[Jennifer] is very normal," she told Us Weekly, "And she and I carpool together — so I trust her! Moms I know, I trust. And that's about it!"

Read more: Celebrity look-alikes: Mother and daughter edition>

Check out Elton John, his partner, David Furnish, and their son, Zachary, on vacation in Saint Tropez, France, with Neil Patrick Harris, his partner, David Burtka, and their twins, Gideon and Harper. 

Now that Elton and David have welcomed their second son, Elijah, everyone has someone to play with on their star-studded playdates.

Read more: Celebrating pride: Celebrity parents we love>

Here's Hugh Jackman helping out Cate Blanchett by hosting a snowball fight among his kids, Ava and Oscar, and her three boys, Roman, Dashiell and Ignatius. Hugh and Cate are good friends — both big-time award-winning Australian actors — so it's no surprise their kids hang out together.

Hugh took the kids that day so she could do some Christmas shopping. He's the sweetest!

Kanye West and Kim Kardashian's little girl, North West, has her cousins, Penelope and Mason Disick, to play with, but everyone's waiting to hear about her first playdate with Jay Z and Beyonce's one-year-old daughter, Blue Ivy. 

The power couple recently visited Kim and North at Kim's mom, Kris Jenner's home while Kanye was away. So, it's clear Kim's gained acceptance among the A-listers. Jay Z and Beyonce even blinged out North almost as much as Blue herself... Stay tuned for tales of outrageous playdates, ft. Blue and Ivy.

Read more: Baby bling! Outrageous gifts celebrities give their kids>

"Yes, I bring her to work as often as I can," Alyson Hannigan told me of her daughter Satyana, when I interviewed her in New York two summers ago. "There’s a nursery set up and I ordered this indoor playground, and she loves the slide."

"And she’s met [Neil Patrick Harris's] twins once because they’re too small to really come to work," she continued. "But Coby [Smulder's] daughter Shaelyn is seven weeks younger than Saty, so they’ll have a playdate on set.  If one is coming, we try to make sure the other is coming, too."

Cute! Alyson has since welcomed a baby girl, who must be enjoying that awesome playground, too, now with the Harris-Burtka twins et al.

Jessica Simpson and her younger sister, Ashlee Simpson, have enjoyed time together with their little ones, Maxwell and Bronx. Here they are shopping at Toys 'R Us in Burbank California back in March.

Since then, Jessica has welcomed her second child, Ace Knute, and Bronx is loving playing with his new little cousin. "I gotta say he's looking a little like Bronx," Ashlee tells E! Online of baby Ace. "They're all little towheads. They're all so cute."

Read more: Back-to-back babies: Celebrities we love>

The idea for this whole gallery was actually triggered by The Heat, featuring besties Sandra Bullock and Melissa McCarthy. The two were so hilarious in that movie, one can only imagine how fun playdates are for their kids — Louis Bardo Bullock and Georgette and Vivian Falcone — and for them! They all recently enjoyed a playdate at Melissa's Los Angeles home.

This gallery was also spawned by the birth of Jessica Simpson's bestie, CaCee Cobb's new baby boy. Jessica and CaCee spent tons of time together, reportedly gushing about baby stuff, while they were both pregnant at the same time — Jessica with her second child, Ace Knute, and CaCee with her first. There's no doubt their little boys are hanging out together already.

Nicole Richie and Tobey Maguire's wife, Jennifer Meyer, are often spotted together with their kids — Harlow and Sparrow Madden and Ruby and Otis Maguire. Here they are at a birthday party in Beverly Hills, California, last August, snapping photos of their kidlets. 

Read more: Hollywood superheroes and their babies>

Besties Michelle Williams and Busy Philipps have been known to host regular playdates for their daughters, Matilda, 7, and Birdie Leigh, 5.

Hollywood's newest babies> Prince George, North West, Everly Tatum: Check out the newest celebrity babies. Regularly updated!