Union J star singer JJ Hamblett and his girlfriend Caterina Lopez have welcomed a baby boy into the world.
The Beautiful Life singer took to his Twitter page to reveal the news, writing: ''Its official at 9 30am today I became a Daddy The healthy little boy has arrived at a weight of 6lb!!!!! soooo happy right now :)))) xx (sic)''
JJ later revealed the name of the newborn, writing "PRINCETON J. ALEXANDER" on his social networking account, following by an adorable snap.
One Direction star Niall Horan was among the several well-wishers who congratulated the couple.
His message read: "Congrats JJ mate!"
Hamblett's band members Josh Cuthbert, Jaymi Hensley and George Shelley, also took to Twitter to express their joy.
George wrote: "Congratulations JJ and Cat! New little one in the family now so proud of you both! I'm not the youngest member anymore!! Haha Love You! ????!
Its official at 9 30am today I became a Daddy The healthy little boy has arrived at a weight of 6lb!!!!! soooo happy right now :)))) xx— JJ Hamblett (@JJUJWorld) November 28, 2013