Michael Buble sits down with interviewer Tracy Smith for a candid chat for “CBS Sunday Morning”, and discusses the devastating effect that son Noah’s battle with liver cancer had on him and wife Luisana Lopilato.

As Buble explains, his wife was particularly affected by the 2016 diagnosis, which came when Noah was just 3 years old.

“I think it cost her more than she ever could have imagined,” Buble tells Smith. “And I think that what we went through with our kid… and all of that was — honestly… there was a great cost. You know, love isn’t free. Love is not free.”

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During the wide-ranging interview, Buble opens up about why he and Lopilato decided to put their careers on hold after the diagnosis.

“There was no choice,” says the B.C.-born crooner, 43. “No family has that choice. There is no choice. It was take care of business — and there was never any conscious decision ever. There was just, you know, come together as a family, put your head down, you know, pray lots and just survive.”

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While Buble may not have been performing, he reveals that he continued to sing — just not in public. “I never stopped singing, ever,” he says. “Ever.”

Buble also gushes about his marriage to Lopilato, 31 — with whom he also shares 2-year-old son Elias and daughter Vida, who arrived in July — joking that he met her at the exact right time in his career.

“There’s a part of me that’s really happy that, that I’m a famous person because my wife is so beautiful,” he says. “I know that if I wasn’t and I would walk into rooms with her that they would just assume that I was really wealthy.”

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You can catch the entire “CBS Sunday Morning” interview on Sunday, Dec. 16.

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