, appearing in a thread titled "Throwback."
All the famous family members were featured, including Kim Kardashian, Khloe Kardashian, Kourtney Kardashian, Rob Kardashian and Kendall Jenner.
Kris Jenner also featured heavily in the photos.
It was Kylie, however, that fans couldn't get enough of.
Kylie, 24, appeared in a number of snaps being held by her older siblings, mom Kris, and even posing on her own alongside Kendall.
Fans were shocked by just how much the makeup mogul's childhood photos resemble daughter Stormi.
One commenter wrote: "Omg I've never noticed how much Stormi looks like Kylie."
Others simply gushed over how "cute" she was.
MOTHER AND DAUGHTER
Kylie and her daughter are almost inseparable.
The pair are often photographed together, most recently enjoying a fun little outing together earlier this week.
The billionaire gave fans a glimpse into her special mother-daughter day date via her Instagram Stories.
After showing off the Skittles vending machine at the Kylie Cosmetics office, she snapped some sweet videos of her baby girl by her side.
The former Keeping Up With the Kardashians star filmed herself walking beside Stormi.
She appeared to be wearing all black, while Stormi wore all white.
They walked hand-in-hand and there was no sound accompanying the video.
Kylie also filmed rows and rows of fruits and vegetables at what appeared to be a farmer's market.
MOM'S STRUGGLES
The outing came after Kylie opened up about her post-baby struggles.
After welcoming her second child with Travis on February 2, Kylie admitted that she had been having a hard time.
She said in an Instagram video: "... Postpartum has not been easy. It's very hard. This experience for me personally has been a little harder than with my daughter.
"It's not easy mentally, physically, spiritually. It's just been crazy. I didn't want to get back to life without saying that because I think we can look on the internet... and it could look a lot easier for other people, but it hasn't been easy for me..."
Kylie revealed that she's "feeling better" and told other moms that it's "okay not to be okay."
She continued: "Once I realized that- I was putting some pressure on myself- and I just keep reminding myself I made a whole human. A beautiful, healthy boy and we have to stop putting pressure on ourselves to be back not even physically, just mentally after birth."
We pay for your stories!
Do you have a story for The US Sun team?