Michael Bublé Welcomes Baby Noah On Instagram!
See the first snap of the singer, wife Luisana Lopilato & newborn son here...
One Directionstar Niall Horan could be the baby's stepdad - with the Irish singer among the first celebs to congratulated the pair on their new arrival.
Horan tweeted: "Congrats to my good friends @michaelbuble @lulopilato on the birth of little baby Buble ! Soo exciting! can't wait t meet the little one."
Congrats to my good friends @michaelbuble @lulopilato on the birth of little baby Buble ! Soo exciting! can't wait t meet the little one
— Niall Horan (@NiallOfficial) August 27, 2013