Michael Buble says he worries that he won't be a good enough Dad to his son, five-month-old Noah.

Speaking on CBC talk show George Stroumboulopoulous Tonight, the singer, who is married to Luisana Lopilato, said, "It's funny . . . I've said it before and I get in trouble for it, I fell in love with my wife. She's a great person. And it's weird, I wanted to get married to her 'cause I wanted to be with her for my life.

"She's my best friend. But did I want to get married? It's a scary commitment. I gotta be honest, by the time I hit my 30s marriage was out. I just looked at my friends who got married and went, 'Why?'

"Especially friends who got married and didn't have kids. Then I was really stumped, I was like, 'So what's your reason for being married it you're not going to have kids?

"Why are you doing it?' It's just one of those things, you know. I couldn't have known it was going to be as good as it is."

He added, "Even having a kid, I thought I was way too selfish, impatient and I thought I was scared every day, even when she was pregnant I was like, 'Am I good enough? Am I going to be a good dad? Am I going to be an absentee father?'

"It's a tough conversation. It's something we struggle with daily."