The couple welcomed son, Princeton J. Alexander into the world on Thursday, November 28th!
“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 tweeted out the news.
“SOOO HAPPY for JJ and Cat!! Its an amazing day and couldnt happen to 2 more amazing people. Chuffed to bits. The baby is gonna be beautiful,” Josh wrote.
George added, “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!”
FYI: Union J are also pictured backstage at Metro Live in Newcastle on Sunday afternoon (December 1).