Baby boom is definitely in the air for 2013! Mario Lopez and his wife Courtney Mazza are expecting their second child, according to US. Weekly.

The X-Factor host spoke with Extra about the new the soon-to-be bundle of joy and how he will break the news to his two-year-old daughter, Gia.

"I'm the happiest father in the world. We cannot wait to welcome Baby Lopez No. 2 into our lives," Lopez said.

Gia also appeared on the show, wearing a shirt that read, "Big Sister Gia."

Lopez, 39 and Mazza, 31 tied the knot in Mexico on Dec. 1, 2012.

Mazza spoke with Us Weekly about the pregnancy, saying, "I'm in that stage where I can't fit into my regular clothes anymore, but I can't fit into maternity clothes yet either. But I'm good, it's all good!" She also mentioned that the baby is due right around their first daughter's birthday.

Mazza admitted that she's already started experiencing unusual cravings. "Right now, I'm really craving Captain Crunch cereal! But I try to keep it in moderation and not go too overboard."

"I'm so excited. I can't take it," Mario added.

The parents are still trying to find ways to explain the upcoming addition to their daughter.

"We're trying to explain it to her, so now she points at Courtney's belly and says, 'Baby, baby!' Once mama really starts popping out, I think she'll understand more...I can't wait to expand the Lopez family!" Lopez said.

Lopez and Mazza met in 2008 while co-starring in the Broadway revival of A Chorus Line.

The couple will join a list of Hollywood celebrities who have just recently announced baby news: Kim Kardashian and Kanye West, Fergie and Josh Duhamel, Alec Baldwin and Hilaria Thomas, Penelope Cruz and Javier Bardem.

Watch Lopez's big announcement here:

Tags: Mario Lopez