Michael Buble says son Noah is 'progressing well' during cancer treatment in emotional message to fans

Good news for the Buble family!

On Friday, Michael Buble shared in a Facebook post that his 3-year-old son, Noah, has been responding well to cancer treatment. In November, the Canadian singer announced Noah was diagnosed with cancer, and put his career on hold in order to care for his eldest child.

"We are so grateful to report that our son Noah has been progressing well during his treatment and the doctors are very optimistic about the future for our little boy," Buble and his wife, 29-year-old Argentine actress Luisana Lopilato, said in a statement. "He has been brave throughout and we continue to be inspired by his courage. We thank God for the strength he has given all of us."

WATCH: Michael Buble Says He Would Have 'Nothing But Love' For His Children if They Were Gay

"Our gratitude to his doctors and caretakers cannot be put into words," he continued. "We'd also like to thank the thousands of people that have sent their prayers and good wishes to us. As we continue this journey, we are greatly comforted by your support and love."

Noah has been receiving his treatment in the U.S. Earlier this month, 41-year-old Buble backed out of hosting the BRIT Awards, which is the U.K. equivalent of the GRAMMYs, to care for him.

ET spoke to Buble last October, when he gushed about the love he has for Noah, as well as his youngest son, 1-year-old Elias.

WATCH: EXCLUSIVE -- Shannen Doherty Reacts to Michael Buble's Son's 'Devastating' Cancer Diagnosis

"I love them more than I'll ever love anything, or anyone in the whole universe," he said. "I think it gave me perspective on life that I think I very badly needed. It's hard to be able to quantify that level of love."

"I didn't even know that there was that color in the spectrum," he added. "I didn't know that level of love existed. But it makes me better at everything. It allows me to pull more emotion and be more honest and to be in the moment."