Michael Buble gives moving performance following his son's cancer diagnosis

Viewers of the Children in Need live appeal were left in tears after Michael Buble's heart-breaking performance of God Only Knows, just weeks after it was confirmed that his son Noah, three, was battling cancer.

The couple released a statement saying they would be “putting their careers on hold” while Noah received treatment, with Buble reportedly vowing to not sing again until his son had beaten the disease.

However, the crooner made one last appearance on the televised charity fundraiser, performing a pre-recorded rendition of the Beach Boys' hit.