Break out the blue paint!

Ben Affleck and his wife Jennifer Garner welcomed their third child -- and first son -- in Santa Monica on Saturday.

Baby Samuel joins older daughters Violet Anne, 6, and Seraphina Rose, 3. Us Weekly was the first to break the happy news.

Back in January, Jennifer told Jay Leno that her husband was okay with having a third girl. '[He] kind of said, "'Well, we have girls. We know how to do girls. My girls love me. I'm the big guy in the house," she recounted.

Somehow, we think that Ben -- who loves baseball -- is happy he has a son to watch Red Sox games with.

Congratulations to the new parents!