By Nick Romano
October 27, 2018 at 11:31 AM EDT

Grab your tissues for perhaps the most emotional Carpool Karaoke ever screened for The Late Late Show.

Michael Bublé matched James Corden‘s enthusiasm for the musical segment that aired on Friday, but the discussion turned towards the most difficult moment of Bublé’s life.

In 2016, Bublé, 43, and wife Luisana Lopilato received the news that their son, Noah, had liver cancer at the age of 3. After singing through some of Bublé’s repertoire, like “Haven’t Met You Yet” and “It’s a Beautiful Day,” he agreed to open up about his family’s struggle with Corden in order to raise awareness of Stand Up to Cancer, which goes to support cancer research.

“It’s so hard to have to acknowledge it ’cause it’s so painful to talk about, but obviously we got the diagnosis and that was it, man. My whole life ended,” Bublé began. Fighting to maintain his composure, the singer said they had to take it “day by day.”

“It’s weird. I’m not okay,” he said. “When this all started, I became the strength to somehow pull us and lift us and to be positive. And when they got it out and the chemo was done and they said we did, it’s good, he’s okay, I fell. My wife picks me up now.”

The Late Late Show producers screened information for as Bublé and Corden offered one more tearjerking moment, a performance of “Home.”

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