According to editors at The Sun, during an appearance on Twitch show, "The Fun Time Boys Game Night Spectacular" last weekend (5-6Sep20), Adam confirmed the happy news to seven other participants.
When one of the gamers said, "Adam, you have a new baby," "The OC" star confirmed the "Single Parents" co-stars had welcomed a little boy.
"I have a new - yeah, since last I played I have a new kid," he said during the "Hold the Phone Comedy" channel series on the live streaming service. "I have a boy and he's a dream, he's a dream boy."
Leighton and Adam's newborn son is the couple's second child, they already have a four-year-old daughter, Arlo Day.
News of the former "Gossip Girl" star's pregnancy first emerged back in April (20) when she displayed her baby bump during a family walk in Los Angeles.
Adam and Leighton wed in 2014.