Michael Buble will not sing again until his son Noah is well, according to his friend, music producer David Foster.

Speaking to Entertainment Tonight Canada, Foster gave an update on how Buble and wife Luisiana Lopilato are doing since the devastating news of Noah’s diagnosis.

Michael BubleMichael Buble will not sing again until his son is well

“I think Michael right now is in a huge bubble,” Foster said.

“Everything shuts down around you. You go inside your little bubble.

“I don’t think he’s looking at social media. I’m sure he feels the love of millions of people.”

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“He’s in good shape, he’s got good doctors around him and we will hope and pray for a great outcome, which I believe they will have,” he continued.

“You get in a bubble and nothing else matters. I don’t think he’ll sing again until his child is well. I am certain of it.

“He’s done a lot of good for a lot of people and I think this is going to have a great, fantastic ending to it and be a new beginning,” Foster added.

Buble revealed Noah’s cancer diagnosis in a Facebook post earlier this month.

“We’ve always talked a lot about the importance of family and the love we have for our children,” he wrote.

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“Luisana and I will devote all our time and attention to help Noah to get better, for now suspending our professional activities.

“During this difficult time, we ask you to pray for him and please respect our privacy,” he added.

“We have a long road ahead and we hope that with the support of our family, friends, fans around the world and our faith in God, we can win this battle.”