The 39-year-old and his wife Courtney Mazza, who just got hitched in December, made the happy announcement on Tuesday.
“I am the happiest father in the world. We cannot wait to welcome baby Lopez number two into our lives,” he told EXTRA.
Lopez and his longtime love are already proud parents to Gia, 2, who donned a shirt that read “Big Sister Gia” during the announcement.
Little Gia served as the ceremony’s flower girl as her parents tied the knot in front of 150-200 guests that included close friend Eva Longoria.
The wedding was filmed for a two-hour special, Mario & Courtney’s Wedding Fiesta, which aired one week later on TLC.
Check out the gallery, above, for Mario Lopez and Courtney Mazza’s cutest couple moments.
What do you think will be the perfect name for the Lopez family’s new addition? Then share your congratulations for the happy couple below.
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