Celebrity Kid Birthdays: Kimora Lee Simmons' Little Boy Turns 6 & Monica Brown's Son Hits 10

This weekend should have been nothing but fun for celeb moms Kimora Lee Simmons and Monica Brown as both had sons celebrating birthdays. While the Brown family had a blast celebrating with a Fresh Prince of Bel Air themed party for Rocko's 10th birthday, Kimora found herself taking time out from Kenzo's party to slam a fan on Instagram for insulting her daughter's performance in Grease at her school.

When it comes to women protecting their babies, Kimora is one who doesn't like people going after her children! MStars News has learned that the mother of 4 had to slam an Instagram follower for the shade she threw on her daughter, Ming Lee's performance in the Grease musical.

In the video below, proud mom, Simmons posted a clip of her eldest child singing along at her schools play. She wrote: "#MingLee performing in #Grease #ProudMama," as one fan replied, ""Million dollars can't make you fab for the spring musical! #SorryBooBooKitty"

 #KimoraLeeSimmons vs Fan!! #ClapbackSeason

A photo posted by The Shade Room (@theshaderoominc) on May 31, 2015 at 8:22am PDT

When mama bear, Kimora saw this comment, she clapped back and wrote: "@caligalsnapshots can't make you pretty either #InsideOrOut #ButItWillBuyYouASeat" Dang! But besides all of this name calling, Kimora has been busy getting used to having a new baby in the family.

MStars News previously reported that the former model and fashion designer gave birth to a son, Wolfe Lee, back in April. Besides breastfeeding and changing diapers, Kimora has been busy hosting birthday parties, like the one she gave her son, Kenzo, over the weekend. The son of actor Djimon Hounsou turned 6 years old.

Happy 6th Birthday to my baby heart #KenzoLee!! Mama is so proud of you and loves you SO VERY MUCH!! A photo posted by Kimora Lee Simmons (@officialkimora) on May 30, 2015 at 5:17pm PDT

Happy 6th Birthday to my love #KenzoLee!! #CaptainAmericaParty! A photo posted by Kimora Lee Simmons (@officialkimora) on May 30, 2015 at 4:58pm PDT

Simmons ex-husband, Russell Simmons, also loves the kids. He was present during little Kenzo's birthday celebration.

Amazing gathering. Lots of love. Shout out #bestdad @djimon_hounsou A photo posted by Official Russell Simmons (@unclerush) on May 30, 2015 at 2:13pm PDT

Here's a video of Russell with his daughter, Aoki Lee, as they race through the blowup maze.

REPOST FROM @victormatthews_: filmed this "Russell and Aoki obstacle course run today at Kenzo Lee Birthday party! @unclerush @officialkimora #AokiLee #kenzolee #fun #family #birthday" watch Aoki cheat. She only won cause she pushed me at end .. look see her CHEAT. Lol A video posted by Official Russell Simmons (@unclerush) on May 30, 2015 at 2:58pm PDT

In other celebrity kid birthday news, Another party that happened over the weekend was for singer Monica Brown's son, Rocko, who had turned 10 and celebrated in style.

So today it's all about you Big Guy @rockohill My "Fresh Prince" LOL 2015 Fresh Prince Birthday Bash underway Happy 10th Birthday thank you @tiffanycooktce and entire Georgia Aquarium Staff and of course to our family and friends We love you Dearly. Our lives are so full of joy because of you #LETShaveFun @mrdblanks styled by his Momma LOL A photo posted by Monica Brown (@monicabrown) on May 30, 2015 at 3:43pm PDT

Check out his killer "Duggie" moves.

#PressPlay: Aww look at #MonicaBrown's son getting it for his birthday !!! A video posted by The Shade Room (@theshaderoominc) on May 31, 2015 at 8:02am PDT

Happy Birthday guys!