(CBS News) It's a boy for Alessandra Ambrosio and her businessman fiance Jamie Mazur. The Victoria's Secret model gave birth to Noah Phoenix Mazur on Monday
"Well, the day just arrived and we couldn't be more happy!!! Noah Phoenix was born yesterday afternoon and already stole our hearts," Ambrosio, 31, wrote on Facebook.
He joins the couple's 3-year-old daughter, Anja Louise.
Mazur also chimed in on the news:
Welcomemy son, can't wait to show u around this crazy place.-- jamie mazur (@anjasdaddy) May 7, 2012
Mazur and Ambrosio have been dating since 2005.