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Alessandra Ambrosio has finally given birth to a baby boy!

The 31-year-old Victoria’s Secret model and her husband Jamie Mazur welcomed their new son late yesterday.

PHOTOS: Alessandra Ambrosio Bares That 8 Month Baby Belly!

The California businessman took to his Twitter to confirm the wonderful news. He tweeted: “Welcome my son, can’t wait to show you around this crazy place.” The new baby boy will be the little brother to their daughter Anja, who is 3 years old.

DETAILS: Alessandra Ambrosio Is Pregnant & Nude In Vivara Jewelry Campaign

Their son also happened to arrive just two days after Alessandra’s official baby shower.

Congratulations to Alessandra and Jamie! We can’t wait for pictures of the little bundle of joy.