The Canadian singer and his gorgeous Argentinian actress wife took to Instagram last night to share the happy news of their third child's arrival .

Accompanying a cute black and white photograph of the new arrival's delicate little hand,  Luisana Lopilato wrote in Spanish: "How to explain that our heart explodes with love?  That there's not enough hours in a day to think about it."

She also said: "I thank God for making us this gift of life and happiness! Because looking in her eyes is looking at Heaven itself!

"We love you to infinity and beyond," she continued. "We waited for you not only to grow as a family … you gave us light, hope, you are and will be our souls' life."

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Cómo explicar que nos explota el corazón de amor? Que no nos alcanzan las horas del día para contemplarla. Le agradezco a Dios por hacernos este regalo de vida y alegría! Porque mirar sus ojos es mirar el cielo mismo! Te amamos hasta el infinito y más allá. Te esperábamos no solo para crecer como familia... nos diste luz, esperanza, en fin sos y serás nuestra Vida del alma!! #regalodedios #feliz #family #ourprincess

A post shared by Luisana Lopilato (@luisanalopilato) on Jul 26, 2018 at 10:26am PDT

Michael Bublé, who played to 80,000 people in Croke Park back in July, remarked earlier this summer that he's been to hell and back as their "superhero" four-old-son battled cancer.

'I don’t talk about the whole story, not even to my friends because it hurts too much. It's my boy. He's a superhero, he doesn't need to relive it over and again. But I've been to hell. And you know what, hell seems like a really nice place to vacation compared to where we've been," he said in a interview with Herald Sun back in July.
Fortunately, Noah has now recovered. But Michael admits that he contemplated walking away from his music career as his young son fought cancer.
"I truly thought I'd never come back to music. Family is what matters. The health of my children is No.1. The relationship with my family, my wife, my faith — all of it is easily No. 1."
He added:"Perspective has allowed me to rekindle my love of music. When I went through Noah's cancer from the first moment there was a snap.
"I remember sitting in the hospital room thinking, 'I was worried about any of that s–t? I was worried about record sales or a meme or what some a–hole said about me?' In a second it had gotten so clear."
Michael, whose wife wife Luisana is now expecting a new child due in a few weeks, explained that his son has to be regular checked out still.
"It's cancer so obviously we have to monitor it but I wouldn't be [getting back into the spotlight] if he wasn't okay," he said.