"So happy you are out in this world you beautiful boy you," Aaron wrote in his post's caption, before revealing that Lauren gave birth last month. "I promise to make you proud little guy."
Lauren revealed that their new baby's name is inspired by artist Mark Ryden: "Born on a full moon, he has such a gentle and knowing spirit," she wrote. "I'm so deeply thankful that he chose us to be a part of his journey."
In a recent interview on The Tonight Show With Jimmy Fallon, Aaron revealed that he asked Breaking Bad costar, Bryan Cranston, to be the baby's godfather.
