Michael Buble wants more children.

Michael Buble and Luisana Lopilato

Michael Buble and Luisana Lopilato

The 41-year-old singer has sons Noah, three, and Elias, eight months, with his wife Luisana Lopilato and says he would love to expand their family but it will be Luisana's decision.

He told Entertainment Tonight: "I would love to. Who knows what we have planned. Even asking me is like, no, because my wife is the boss. It's her body and she'll tell me when she's ready. If she's ready."

And Michael says becoming a father is the best thing that ever happened to him.

He said: "I love them more than I'll ever love anything, or anyone in the whole universe. I think it gave me perspective on life that I think I very badly needed. It's hard to be able to quantify that level of love.

"I didn't know that level of love existed. But it makes me better at everything. It allows me to pull more emotion and be more honest and to be in the moment."

Michael recently revealed he wishes he had started a family when he was younger because he didn't understand the "perspective" having a child would give him.

He said: "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 see how not serious they are compared to what is really important, which is Noah and Eli and that's it."