Michael Buble and his wife Luisana Lopilato are expecting a second son.
The couple already have a two-year-old boy Noah together and Michael and Luisana - who announced her second pregnancy in July - will welcome another boy.
Michael told 'ET Canada': "It's a boy."
He added: "You know, Noah's two and I already miss him when he was a baby. We love that part so much that how can we not want to have that again? And again, and again... I'm saying that now, let's see what I say after two."
Michael also spoke about his previous relationship with Emily Blunt, which ended in 2008, insisting cheating was not the cause of their split.
He said: "Emily is a beautiful and loving person, and I'm grateful for the time I had with her, for the relationship. Without it, I wouldn't have had a chance to fall in love with myself enough to be with a woman like my wife.
"It didn't end because of cheating. It ended because we weren't right for each other, and we are now exactly where we're supposed to be in our lives."
Emily married John Krasinski in 2010 and the pair have a daughter, Hazel.