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'Extra' and 'The X Factor' host Mario Lopez and wife, Courtney Mazza, weclomed their second child, a son named Dominic Lopez, on Monday, Sept. 9, 2013. The couple announced in February 2013 that they were expecting a second child to join their 2-year-old daughter Gia.
The TV personality tweeted to his more than 800,000 Twitter followers his excitement for his newborn son, saying, "It's a boy!!!!!!!!!!!!!! Please welcome Dominic Lopez to the world! Couldn't be happier. @CourtneyMLopez & baby are just fine. :)"
(Pictured: Left -- Mario Lopez and wife Courtney Mazza appear at 'The X Factor' Season 3 Premiere Party on Sept. 5, 2013. Right -- Lopez and Mazza appear in a photo posted on Lopez's official Twitter account on Sept. 9, 2013.)
(Sara De Boer / startraksphoto.com / twitter.com/MarioLopezExtra)