NEW YORK, NY - SEPTEMBER 15:  Siinger Michael Buble and singer/actress Luisana Lopilato attend 'Tony Bennett Celebrates 90: T
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Michael Bublé and Luisana Lopilato have announced that their 3-year-old son Noah has been diagnosed with cancer. The first child of the 41-year-old Canadian singer/songwriter and 29-year-old Argentine actress was born in August 2013. He got a baby brother, Elias, this past January.

In a statement on Michael Bublé's Facebook, the couple says: 

“We are devastated about the recent cancer diagnosis of our oldest son Noah who is currently undergoing treatment in the US. 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. At this difficult time, we ask only for your prayers and respect for our privacy. We have a long journey in front of us and hope that with the support of family, friends and fans around the world, we will win this battle, God willing.”

"According to reports in Argentina, where the family lives," TMZ writes, "doctors initially thought Noah had mumps ... but when they brought him to see doctors in the U.S. ... they found the cancer."