Zac and his wife, Kate, who also have a son and a daughter, call their newborn baby boy George Abraham Walker.
Zac Hanson and his wife Kate are parents again. The couple has welcomed their child, a baby boy, George Abraham Walker Hanson. Zac and Kate's son arrived on October 17, weighing in at 8 lbs., 7 oz. The baby boy, who joins big brother John Ira Shepherd and sister Junia Rosa Ruth, will go by Abraham.
"We are very excited to share the addition of George Abraham Walker Hanson to our growing family," Zac tells PEOPLE. "Abraham is healthy and we are happily sharing a little down time together as a family."
Zac, who married his wife in 2006, confirmed in May that he and his wife would be parents again. "We are so happy and thankful to add more life and love to our family! It's fun this time to watch the little ones so excitedly anticipating their new sibling," he said at that time.
Zac and Kate's children have many cousins to play with. Zac's brother Isaac Hanson and his wife Nicole have two children, 6-year-old Everette and 4-year-old Monroe. Taylor Hanson and his wife Natalie have five children together, Ezra, Penelope, River, Viggo and Wilhelmina.