Michael Bublé has yearned to become a dad for years, and now it's finally happening!

The Canadian crooner and his stunning Argentine wife Luisana Lupilato are the latest celebrity couple to announce they are expecting in 2013.

They took to YouTube to share the happy news (and their first ultrasound!) with the world. Not surprisingly it features a backing track by the daddy-to-be to help set the mood – the song he wrote for Lupilato, appropriately titled 'Haven't Met You Yet'.

"Mike, LU and… Mini Buble!!!" reads a handwritten sign on the video clip, which then goes on to include ultrasound footage of the tiny bubba, a picture of Bublé smooching his wife and finally the words: "We're having a baby Bublé!!"

Related gallery: 2013 Celebrity Bump Watch

The 37-year-old singer has been more than a little vocal about his desire to become a dad ASAP, but he has been forced to ignore the ticking of his biological baby-daddy clock until Lupilato, 25, told him she was ready.

He told ET Canada in 2011: "I've said to her [Lopilato] a million times I'd love to have kids. But I always say to her, 'When you're ready – when you feel like you've lived and you've partied and done all the things you want to do. When you've worked your butt off, then tell me.'

"All my friends have babies so every time one of them says, 'Guess what, you're going to be an uncle,' part of me is so happy for them and the other part of me is jealous."

The clucky singer will be singing lullabies to his new bubs sometime after August this year.

Do guys have biological clocks, too? Was your partner ready for babies before you were? Please share your comments below.