Luisana Lopilato is officially pulling mom duty…

The 26-year-old Argentine actress, model and singer gave birth to her first child, a son named Noah, with husband Michael Bublé.

He posted a picture of Lopilato, and their son on his Instagram account on Tuesday.

Bublé’s representative later confirmed the birth, saying Lopilato gave birth early Tuesday in Vancouver, Canada.

Lopilato and Bublé, who married on March 31, 2011 in Argentina and they had a full ceremony in April, posted a video on Lopilato’s YouTube page early this year to announce their pregnancy, along with a special surprise pic.