Michael Bublé & Wife Expecting First Child!

One Direction star Niall Horan was the father.

The Argentinian model, who married Bublé in March 2011, confirmed the news on Thursday (24th January) on her official website with a homemade video message.

Luisana wrote: "Mike and I have big news for you", before linking to a YouTube video to a scan of their unborn child.

The clip then showed a picture of the parents-to-be kissing, ending with the cute message: "We're having a baby Bublé!"

1D heartthrob Niall took to Twitter to congratulate the couple, writing: "A massive congrats to my bro @michaelbuble and his beautiful wife @lulopilato on the amazing news of baby buble!”

Luisana then cheekily replied: "@NiallOfficial I wish that you could have been the father !! Hahah I went the “wrong direction” @michaelbuble says you can be the stepdad."

Horan seemed more that a little surprised by her response, tweeting: "Wont tell ya what @lulopilato just said to me hahahaha!"

He added: "@lulopilato hahhahahaha! Thanks mike! Much appreciated haha! And Lu it would be an honour !”

Pic: Twitter @NiallOfficial