Kourtney Kardashian’s 10-year-old son, Reign Disick, is setting the record straight after bizarre speculation resurfaced claiming that pop superstar Justin Bieber is actually his father. 

Kourtney Kardashian And Scott Disick’s 10-Year-Old Son Reign Addressed The Theory That Justin Bieber Is His Dad — And It's About Time We Cleared This Up https://t.co/o4PSWrdaka

— BuzzFeed (@BuzzFeed) April 1, 2025

It all went down during an Instagram Live session hosted by Alabama Barker’s boyfriend, Scooter Jackson. When a fan brought up the wild paternity theory, Disick wasted no time shutting it down.

“No! He’s not, bro, I swear,” Reign said. “Justin Bieber’s not my dad. Scotty, Scotty, Scotty is my dad.”

The Disick then doubled down, adding, “I don’t know how old my mom was, but I think Justin Bieber was 16 when I got born [sic]. Yeah, I don’t think my mom would do that.”

While the internet continues spiraling, an insider told Us Weekly that Kardashian finds the whole ordeal laughable. “Kourtney doesn’t give any heed to the reports that Justin is Reign’s father,” the source shared. “She thinks it’s ridiculous and laughs that people online would even believe that.”

And let’s not forget – Kardashian and Scott Disick share three children together: Mason (15), Penelope (12), and Reign (10). The Poosh founder has always been open about her son's resemblance to his dad. In a previous confessional on The Kardashians, she even joked, “I’m starting to get a lot of vibes, like his dad.”

Kourtney Kardashian and Scott Disick's son Reign went on live today and shut down rumors that Justin Bieber is his real dad 👏🏻 pic.twitter.com/ExyIbbytOS

— Chicks in the Office (@ChicksInTheOff) April 1, 2025

If you’re wondering.....wait, when was the reality star and Bieber even a thing? Let's rewind to 2015. Shortly after Kardashian's split from Disick, she was spotted out and about with Bieber. 

A source told Page Six at the time that the two were practically glued to each other at a Hollywood lounge, even getting a little “touchy-feely.” The insider added, “Kourtney knows it upsets [Scott], so when Scott flaunts being out with other girls, she hangs out with Justin to get back at him.”

Neither Kardashian nor Bieber ever confirmed the fling, but the singer once jokingly told a radio host that he was “being used” by Kardashian. 

Fans wasted no time sharing their reactions to the wild rumor, with many rolling their eyes at the speculation. One unimpressed user dismissed it outright, saying, “Crazy rumors. NEXT!” Others were baffled that the conversation was even happening, with one person commenting, “Wow! People really have too much time on their hands.”

Some critics took it a step further, questioning the fascination with celebrity drama altogether, with one tweet reading, “Who cares? People famous for being rich and batshit celeb worship is so odd to me.” 

At the end of the day, Disick has spoken, Kardashian is unbothered, and Bieber is busy living his best married life with his wife, Hailey Bieber. Case closed? Looks like it – unless the internet decides to rehash it all over again.