Credit: Gregg DeGuire/

Another baby is on the way for Zac Hanson!

The pop rocker, 24, and his wife Kate are expecting their second child, he revealed Thursday on nationally-syndicated radio show Kidd Kraddick in the Morning.

"I have a new new baby. It's coming," he said. "Nobody even knows."

Zac and his wife, who wed in 2006, welcomed their first son, John, in 2008.