Union J star JJ Hamblett has announced that he will become a dad.

The singer revealed on Twitter that his girlfriend Caterina Lopez is expecting the couple's first baby together.

The 25-year-old tweeted yesterday (September 18):

"Guys I want you to be the first to know that I've got some big news...I'm going to be a daddy.... :-) :-) wooop x."

He added: "My girlfriend and I are super super excited and the boys cant wait to be uncles! They are already thinking of names begining with J lol :-)x."

US model Lopez meanwhile said on Twitter: "Thank you for all the beautiful messages ! WE are so happy to welcome our little monkey into the world very soon ..#itsaBeautifulLife."

Union J meanwhile are gearing up for the release of their self-titled debut album on October 28, which will feature the singles 'Carry You' and 'Beautiful Life'.