“Who is the lil boy.. is that Psalm?” one confused fan asked, to which another joked, “I had to make an educated guess about Psalm.”

Fans couldn’t believe how “big” Psalm West has gotten in a new video shared by aunt Khloé Kardashian.Instagram/kimkardashian

In the clip, the 4-year-old danced alongside sister Chicago and cousin True.Khloe Kardashian/Instagram

He wore a black hoodie and his hair was cut shorter.Khloe Kardashian/Instagram

“Is that Psalm??? OMG !! If that’s him then he grown (sic) so fast!!” a third fan chimed in, to which a fourth agreed, “Psalm grew up so much.”

“That’s Psalm with True and Chicago?? wow he got big!” another follower added.

While Psalm was only featured at the beginning of the video, several other fans were impressed by the preschooler’s ability to remember the lyrics to sister North’s verse on her father’s song “TALKING.”

“I had to make an educated guess about Psalm,” one fan joked.Khloe Kardashian/Instagram

Psalm is the youngest of Kim Kardashian and Kanye West’s four kids.Instagram/kimkardashian

Psalm, Chicago and True all wore pajamas and sang and danced along to the 10-year-old’s rap before another song played.

“A medley,” Khloé, who also danced with her kids in the video, captioned the post.

The “Good American” founder shares her two children with ex Tristan Thompson.

Meanwhile, Kim also shares 8-year-old son Saint with the “Heartless” rapper in addition to Psalm, Chicago and North.

The former couple split in 2021 after seven years of marriage.kimkardashian/Instagram

Although the reality star has their kids the majority of the time, West often criticizes her parenting online.GC Images

The Skims founder filed for divorce from West in 2021 after seven years of marriage. After a year of back and forth, the pair finalized their split, with Kim being awarded $200,000 a month in child support.

Since then, their relationship has soured as the controversial rapper has continually called out his ex-wife on social media and in his music.

Most recently, the pair have been butting heads about their kids’ schooling, with West claiming their current school was “a fake school for celebrities that are used by ‘the system.’”

At the time, a source close to the famous family told Page Six that Kim was “frustrated” by her ex’s outburst.

However, Kim has never publicly called West out for his antics, previously telling Variety she would never “criticize the father of my children.”

The “Heartless” rapper recently called out his ex for their kids’ schooling.Instagram/@kimkardashian

Although we’re told the Skims founder was left “frustrated” by his public attacks, she has never spoken negatively about the father of her children.Pap Nation / Splash

Despite that, the exes have put on a united front for the sake of their minor kids in recent weeks.

Earlier this month, the “Kardashians” star was spotted supporting her eldest daughter at one of West’s “Vultures” listening parties alongside his new wife, Bianca Censori.

A week later, the former couple was also spotted making small talk at son Saint’s basketball game.

At one point, the “Jesus Walks” rapper was even seen embracing the Skkn founder as they stood side-by-side on the court.