Union J's JJ Hamblett has announced that he is expecting his first child with long-term girlfriend Caterina Lopez.

The 25-year-old popstar revealed the news via Twitter writing: "Guys I want you to be the first to know that I've got some big news...I'm going to be a daddy... :-) :-) woop x"

The former X Factor contest also confirmed that his Union J band mates were thrilled with the news: "My girlfriend and I are super excited and the boys can't wait to be uncles! They are already thinking of names beginning with J lol :-) x."

Josh Cuthbert was the first to congratulate JJ on his twitter saying: "SUPER DOOOPER WOOOOPER HAPPY FOR MY BROTHER JJ :-) :-) :-) :-) hi my names Uncle Josh..just call me Uncle.Pidge. :P hehe! Love you bro x".

JJ's American girlfriend Caterina thanked fans also via Twitter. She said: "Thank you for all the beautiful messages ! WE are so happy to welcome our little monkey into the world very soon ..#itsaBeautifulLife"