Joey McIntyre and Barrett

New Kids On the Block singer Joey McIntyre is gearing up for a new kid of his own: a baby boy.

McIntyre's wife, Barrett, is pregnant with their second child, according to People. And this new little guy really took his parents by surprise.

Watch a recent interview with all five members of the New Kids

"My wife actually took the [pregnancy] test but she thought it was negative," says McIntyre, 36. "She came out and gave me this look like: no. Then she showed me the test, and I said, 'It's positive! What the hell?'"

The couple was convinced a baby girl would be joining their 20-month-old son Griffin but were totally thrown upon learning another boy is due come December. They even picked out a girl's name for the baby.

Watch the New Kids' first reunion performance live at Rockerfeller Plaza

"We were shocked," says McIntyre, who remains thrilled regardless of the gender. "It's going to be a trip to have a couple of boys around."

So how many kiddies does the couple hope to add to their family?

"I think we have a deal to keep going until we have a girl," McIntyre said laughing. "That's what my wife says."

What do you think the proud parents should name their son?