Michael Buble has revealed that his 3-year-old son has been diagnosed with cancer.

The singer and his wife confirmed the sad news in a statement via social media.

“We are devastated about the recent cancer diagnosis of our oldest son Noah who is currently undergoing treatment in the US," the statement read. "We have always been very vocal about the importance of family and the love we have for our children. Luisana and I have put our careers on hold in order to devote all our time and attention to helping Noah get well."

They concluded the post by asking for prayers for Noah and requesting that their privacy be respected during this time.

"We will win this battle, God willing.”

Entertainment Tonight Canada noted that the family had little Noah checked out for what they believed was mumps. It was then that they learned he had cancer.

The couple also has a 9-month-old son named Elias together.