Michael Bublé's sister shares sweet message amid nephew Noah's cancer battle

Michael Bublé's younger sister, Brandee Bublé, has taken to Instagram to post an inspirational message following the heartbreaking news that her nephew Noah, 3, has cancer. Written on a chalkboard, the biblical verse she shared read: "And now these three remain, faith, hope & love. But the greatest of these is love." Alongside the photo, Brandee wrote: "And we've got a lot…."

TAP TO VIEW GALLERYMichael Bublé's sister Brandee has shared an inspirational quote on Instagram

Michael and his wife Luisana Lopilato made the heartbreaking announcement on Friday that their eldest son Noah is battling cancer. The couple, who are also parents to baby boy Elias, shared a message on Michael's Facebook page to confirm the sad news.

"We are devastated about the recent cancer diagnosis of our oldest son Noah who is currently undergoing treatment in the US," they said. "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.

The singer with his three-year-old son Noah

"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."

The couple, who tied the knot in March 2011, welcomed little Noah in August 2013. Their second son Elias was born in January of this year.

The Canadian singer and his model wife, 29, regularly share photos of their adorable brood and are clearly devoted to their boys.

Michael and Luisana are devoted parents to Noah and baby Elias

Michael has previously spoken about his regret at not having children earlier. He said on Loose Women: "The only regret that I have in my life is that I took this long to have kids, because I had no idea the perspective it would give me. I had no idea how much I would love being a dad. That's it, that's all I care about... I love them too much probably, if there was such a thing.

"It's made everything else so insignificant, moments that I was afraid of and moments that would overwhelm me have now become a joy because I've realized how not serious they are compared to what is really important, which is Noah and Eli and that's it."

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