His girlfriend, Broadway dancer Courtney Laine Mazza, delivered their first child, Gia Francesca Lopez, on Saturday in Burbank, Calif., according to 'Extra.' Little Gia arrived weighing 6 lbs., 4 oz., and both mother and baby girl are reportedly doing fine.

"We are so overjoyed. What an amazing, wonderful and overwhelming experience to welcome our daughter into the world," Lopez said. (Take a peek at the baby's posh new nursery here.)

VH1 has been prepping a reality series about the TV star's new adventures in fatherhood. On Friday, Lopez tweeted: "They want to call the VH1 show 'Mario Lopez: Saved by the Baby'. Makes me laugh when I say it out loud which is good since the show's funny."