Kourtney Kardashian's son, Reign Disick, just put a years-long unfounded rumor to rest that Justin Bieber is his real father. However, fans are now expressing serious concern. In late March, Reign, 10—whom Kardashian shares with her ex,

Reign Disick was the third child that Kourtney Kardashian had with her longtime partner, Scott Disick. However, a bizarre Internet rumor claims that pop sensation Justin Bieber is actually Reign's father.