Michael Bublé and his wife, Luisana Lopilato, are parents — again!

The couple announced the birth of their second child, a baby boy named Elías Buble, via Twitter on Friday, Jan. 22.

"And then there were four. Introducing Noah's little brother, Elias Bublé. @lulopilato #family #blessed #brothers," the 40-year-old singer captioned a hospital photo of himself beside Luisana, 28, and their newborn.

Michael and Luisana — who married in 2011 and are also parents to a two-year-old son, Noah Bublé — previously announced they were expecting their second child in July 2015 with an adorable video posted on Facebook.

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“Who’s that in there?” the "Home" singer asked Noah in the clip, to which his little boy sweetly replied, “Baby!” while pointing to his mom's stomach.

Congratulations to the Bublé family on their new addition!