Mario Lopez & Wife Courtney Mazza Welcome Son Dominic

Mario Lopez 
Mario Lopez & Wife Courtney Mazza Welcome Son Dominic, Oh, boy! Mario Lopez and his wife, Courtney Mazza, welcomed their second child, son Dominic, on Monday, Sept. 9, the Extra host announced via Twitter.

"It's a boy!!!!!!!!!!!!!! Please welcome Dominic Lopez to the world," Lopez wrote. "Couldn't be happier… Courtney and baby are doing just fine."

Prior to Dominic's birth, Lopez was hard at work on Season 2 of Fox's The X Factor. "Whoa.. Cutting it close. Just wrapped @TheXFactorUSA & I'm rushing to the hospital. Baby Lopez #2 is coming tonight!" he tweeted. "Baby better wait for me." After his son's delivery, the former Saved by the Bell star added, "I am in heaven right now.... And in a bar.

Lopez and Mazza's firstborn child, daughter Gia, turns 3 on Wednesday, Sept. 11. The couple announced Mazza's pregnancy in February, just two months after tying the knot in Punta Mita, Mexico.