By peoplestaff225
Updated March 15, 2010 03:00 PM

Mario Lopez and his actress girlfriend, Courtney Mazza, just announced their pregnancy last week, but the Extra host is already fretting over baby names.

“I don’t know what to do about the name thing,” Lopez, 36, told Ryan Seacrest on his KIIS-FM radio show Monday.

“I like names that mean something. I don’t want to get too creative.”

Lopez and Mazza, 28, have decided not to find out whether the baby is a boy or girl, though of course that just makes the naming process that much harder. And their family trees don’t offer much help either.

“I always tease her because she’s 100 percent Italian, and I thought she would have some exotic name like Isabella or Francesca. And it’s Courtney,” jokes Lopez. “That’s what you get when you’re born in the ’80s.”

Despite the challenges of picking a name, the America’s Best Dance Crew host is otherwise thrilled at the prospect of fatherhood.

“I am so excited. I’m fired up. I’m like a little kid waiting for Christmas,” he says. “I feel like such a kid myself still. I was like, ‘Whoa! Does this mean I have to grow up?'”

— Tim Nudd