This is the couple's third child.
The singer's son, Noah, is now in full recovery.
The baby will join two older brothers when she's born in about three weeks.
Noah was diagnosed with liver cancer in November.
Noah is three years old.
"I'm the babysitter, I'm Mr. Mom or whatever you call it."
We can't wait to meet the littlest Bublé!
The crooner and his son wore adorable matching T-shirts. Check out the photos!