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.