Kourtney Kardashian and Scott Disick's Son Reign Addresses Rumor Justin Bieber Is His Real Dad

Reign Disick is not Justin Bieber’s baby, baby, baby.

The 10-year-old son of Kourtney Kardashian and Scott Disick addressed a longstanding internet rumor that the “Peaches” singer is his biological father during a live broadcast alongside stepsister Alabama Barker’s boyfriend Scooter Jackson.

“Bro, I swear,” Reign said on Instagram Live, “Justin Bieber’s not my dad.”

Kourtney, 45, and Justin, 31, first sparked romance rumors in 2015, shortly after her breakup with Scott earlier that year. Nonetheless, Reign remained certain of his paternity.

“I think Justin Bieber was 16 when I got born,” he continued, though Justin was actually 20 at the time. “Yeah, I don’t think my mom would do that.”

E! News has reached out to reps for Kourtney and Scott for comment but has not heard back.

Just weeks earlier, Reign’s older brother Mason Disick, 15, was at the center of his own internet conspiracy as rumors circulated that he secretly fathered a child. In that instance, Kourtney—who also shares daughter Penelope Disick, 12, with Scott as well as son Rocky Barker, 16 months, with husband Travis Barker—spoke out to condemn the speculation.

“I rarely address rumors or conspiracies regarding myself or my family, but this is about my child and it feels wrong to let anyone think for a second that these lies are remotely true,” she wrote in an Instagram Story post March 2. “They are not. Mason does not have a child. These accounts that pretend to be him are definitely not. They are FAKE.”

The Poosh founder added that Mason “really values his privacy” as she asked the public to “stop spreading false narratives and spinning lies.”

“And to all the other people making videos about my kids (who, by the way, are minors),” she concluded, “please stop and leave them alone.”

Keep reading for a closer look at Kourtney and Travis’s blended family…

Kourtney and Travis took Alabama to Tommy Factory's New York Fashion Week show in September 2022.

Penelope Disick—who Kourtney and ex Scott Disick share alongside sons Mason Disick and Reign Disick—appeared with her mother in a vacation selfie from Australia.

Reign and Penelope enjoyed some fun in the sun during their family trip to Australia for Blink-182's tour.

Kourtney and Travis enjoyed some touristy activities in Australia.

In honor of Landon's 20th birthday in October 2023, Kourtney shared a throwback photo from 2017 of the then-teenager hanging out with Mason.

Alabama snaped a silly selfie with half-sister Atiana, as well as Kourtney and Penelope, during the Kardashians star's May 2022 wedding with Travis.

Kourtney took a break from her wedding festivities in to pose for a selfie with Alabama in May 2022.

Travis took Alabama, Landon and Atiana to the premiere of The Kardashians in April 2022. Meanwhile, Kourtney was joined by Reign.

Kourtney's oldest son Mason tagged along with Alabama and Atiana to Travis and Kourtney's front row outing at the AMIRI fashion show in February 2022.

Kourtney Kardashian and Travis Barker was joined by Landon Barker—who he and ex Shanna Moakler share alongside daughter Alabama Barker and stepdaughter Atiana De La Hoya—at GQ's Men of the Year party in November 2022.

Kourtney shared a close up of this sweet throwback of Alabama and Penelope for Alabama's 17th birthday.

Kourtney, Travis, Alabama, Atiana, Landon and Reign posed at Disneyland in April 2022. 

The group spent the day at the Happiest Place on Earth in honor of Kourtney's 43rd birthday.

Landon, Atiana and Kourtney bonded over a fun snapshot.

Penelope the artist! Travis shared her drawing of him in March 2022.

On Christmas Eve 2021, the Kardashian-Jenners joined the Barkers for a night of celebrations.

Travis and Penelope enjoy a game of checkers, while Kourtney and matriarch MJ Houghton watch the pair.

For Alabama's 16th birthday in December 2021, Kourtney and Travis surprised her with balloons that spelled out "BAMA 16."

Travis wrote in caption, "I LOVE YOU SO MUCH!!!"

Travis appeared with Kourtney and Penelope in a TikTok video posted on the mom-and-daughter duo's joint account.

"So happy for you guys," Travis' daughter Alabama wrote on a photo celebrating the couple's engagement. "I love u both!"

Landon joined his dad and Kourtney for some Halloween 2021 fun at Knott's Scary Farm in Southern California.

Kourtney recruited her son Mason for a trip to Universal Studios' Halloween Horror Nights with Travis and his daughter Alabama in 2022.

Atiana posed as the Bride of Frankenstein to Reign's Frankenstein during the spooky outing.

Kourtney's daughter Penelope rocked a devil costume as the crew headed to the Los Angeles immersive jack-o-lantern experience Nights of the Jack.

During their Nights of the Jack adventure, Alabama captured Travis and Penelope sharing a sweet moment as he walked around carrying her on his shoulders.

Even before they were dating, Travis and Kourtney were friends for years. Just look at this throwback photo of Mason, Landon, Alabama and Penelope from 2017.

Talk about a sweet birthday present! Travis gifted Kourtney's daughter Penelope a state-of-the-art drum set when she turned nine back in July 2021.

What better place to spend the Fourth of July 2021 than Disneyland? The happy couple celebrated the holiday there with Landon, Alabama and Reign.

Atiana opted to twin with Kourtney in matching snow gear during their first family trip together in Deer Valley, Utah, in April 2021.

Who needs to hit the slopes when you've got snowmobiles? Alabama joined in on the fun in this candid snap of her, Kourtney and Atiana.

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