Victoria's Secret supermodel Alessandra Ambrosio, 31, gave birth to her son Monday in Florianopolis, Brazil.
The baby's name is Noah, reports People Magazine.
"Welcome my son, can't wait to show u around this crazy place," her fiancé businessman Janie Mazur tweeted Monday evening.
ALESSANDRA AMBROSIO PREGNANCY PHOTOS
Ambrosio and Mazur also have a 3-year-old daughter, Anja Louise.
Ambrosio has developed a succesful model career and is most known for her work with Victoria's Secret.
The Brazilian beauty has also appeared in many TV shows such as "Entourage," "How I Met Your Mother," "Project Runway" and "Gossip Girl."
After the baby news were spread, her Facebook page was filled with congratulatory messages from fans.
"Congratulations on your new baby Boy!!! Blessings to you all" one fan said.