Benjamin Ashford|Kim Kardashian's Son Psalm Shocks Fans With Grown Up Appearance in New Video

Kardashian fans are Benjamin Ashfordstarting to have a hard time keeping up.

After all, social media users were shook when they saw just how much Psalm West—the 4-year-old son of Kim Kardashian and Kanye West—has grown since his birthday last May. In a video shared by Khloe Kardashian on March 29, the young boy stood tall next to his sister Chicago West, 6, and Khloe's daughter True Thompson, 5, as they all danced around the kitchen to North West's "Talking" collab with Kanye.

"STOP!" one fan wrote in the comments section. "When did Psalm get so biggggg? OMG the cuteness I can't."

Meanwhile, a second user remarked about how Psalm has "grown so fast."

Pointing out his new fringe, a third commenter, "Psalm is so handsome w/ the haircut."

But he wasn't the only baby boy who stole hearts. Elsewhere in the video, Khloe's son Tatum Thompson, 20 months, made a cameo as his sister boogied down to The Struts' 2014 hit "Could Have Been Me."

"Tatum is trying to figure out what's happening," one fan joked, while another user quipped about the tiny tot being his uncle Rob Kardashian's "twin."

The comments section also couldn't get enough of seeing so many Kardashian cousins in one place, with one note reading: "Awwh they are getting so big."

Indeed, the Kardashian cousins are a very tightly knit group. In fact, their family wavelength is so synced that True and Psalm both spent last summer in arm casts.

"Cousin cast club," Khloe jokingly captioned a photo of the pair after their playtime mishap in August. "Trampoline and monkey bars. They had a ball this summer."

For more cute Kardashian cousin moments, keep reading.

True Thompson and Chicago West honor their respective mothers, Khloe Kardashian and Kim Kardashian, in a mischievous way.

True and Chicago share a sweet moment.

True and Psalm West wear casts after breaking their arm in August 2023.

Khloe's daughter and Rob Kardashian's daughter Dream Kardashian pose for pics for St. Patrick's Day 2023.

Khloe shared this photo of her daughter True, plus cousins Penelope Disick, Saint West, North West, Reign Disick, Psalm West and Dream in February 2023. She wrote, "This photo was near a miracle to get lol...a handful of other other cousins were off running and playing."

Penelope Disick, North West, Dream Kardashian and True Thompson appear together in February 2023.

Chicago sings her dad Kanye West and XXXTENTACION's song "True Love" while sitting in a vehicle with her little brother Psalm West in October 2022...

...the song references his and Kim Kardashian's four children, but Chicago and Psalm did not perform those parts.

Khloe and True have Dream over for a sleepover in June 2023.

Kylie Jenner, Stormi Webster and Kris Jenner lip-synch one of the momager's confessional lines from The Kardashians in an October 2022 TikTok video.

In August 2022, Kim coined the acronym "best friends forever and ever" to describe True, Chicago and Dream.

Penelope Disick helps North West celebrate her 9th birthday with a "Camp North"-themed getaway to the wilderness with a group of BFFs.

"Today was incredible! Our girls had their first dance recital and they were perfection!!!!" Khloe shared in June 2022. "I am so proud of all four of my girls!"

The cousins celebrate True Thompson's fourth birthday during a cat-themed bash in April 2022.

Penelope and North snap a video during True's birthday party.

Psalm accompanies True while playing with a furry friend.

The cousins pal around in a play pen.

True and Dream have an epic dance party to Aqua's '90 hit song "Barbie Girl," which Khloe documented on Instagram.

The BFFs also performed and sang along to the massively popular song from Encanto "We Don't Talk About Bruno."

Could their dance moves be any cuter?!

Chicago, True and Stormi give each other hugs and kisses in an adorable pic, shared by Kim on Sept. 1. "250 Million followers on IG. I love you guys!" Kim thanked her fans. "I wanted to post this pic because if I could get 250 million kisses from our babies my life would be complete." 

Chicago, True and Stormi showed off their fashion prowess in stylish outfits as they had a hug huddle on Sept. 1. 

Chicago looks back at aunt Khloe as she holds hands with True on Aug. 4. 

Dream, Stormi, Chicago and True adorably went window shopping at The Grove on Aug. 4. "Cousins," Khloe captioned with a purple heart emoji.

Reign, Mason, Penelope and North set up a summer lemonade stand also selling custom bracelets on Aug. 1. Even Scott received a custom "Lord" bracelet from "pooshalini" Penelope!

"The sweetest girls," Khloe Kardashian captioned a precious moment between cousins Dream Kardashian, True Thompson and Chicago West. 

Former E! star Natalie Halcro's daughter also joins the photo opp. 

Dream, True and Chicago sport matching purple leotards.

"Are you ready for this cuteness?? I'm not!! #Cousins #Sisters #GirlsRunTheWorld," proud mom (and aunt) Khloe captioned an adorable pic of daughter True and nieces Chicago and Dream.

Chicago, True and Dream all gaze in the camera for a pic in May 2021. The trio of cousins seem to be having fun in the sun and enjoying the spring weather!

Get updates on your favorite family & more. Sign up for Kards Katch Up with E! News!