Cameron Diaz and Benji Madden's family feels "complete" with the addition of their baby boy, Nautas. "They are ecstatic about adding [another] son to their family," a source exclusively tells Us Weekly two days after Diaz, 53, and Madden, 47, announced that they had welcomed their third child. "Not many people in their circle knew because they weren't sure it would become a reality." Diaz and Madden, who tied the knot in 2015, are also parents to daughters Raddix, 6, and son Cardinal, 2. All three of their children were born via surrogate.