Mother and baby are doing well.
Lopez tweeted the happy news, writing, "It's a boy!!!!!!!!!!!!!! Please welcome Dominic Lopez to the world! Couldn't be happier... Courtney & baby are doing just fine."
Mario and Courtney were married in December and are already parents to Gia Francesca who turns three on September 11.
[Credit: Mario Lopez]
"Extra's" Mario Lopez and wife Courtney welcomed a healthy baby boy, Dominic Lopez, weighing in at 7 lbs, 2 oz, Monday, Sept. 9 in Los Angeles, CA.