On Wednesday, Carrie Underwood revealed that she gave birth to a baby boy, Jacob Bryan Fisher, on Monday. “His mom, dad and big brother couldn’t be happier for God to trust them with taking care of this little miracle!" the country star wrote on Instagram, alongside a pic of herself holding the newborn. "Our hearts are full, our eyes are tired and our lives are forever changed. Life is good." Underwood and her husband, former NHL star Mike Fisher, also have a 3-year-old son named Isaiah.