Jack Black and Wife Expecting

will soon have to do double diaper duty: He and wife Tanya Haden are expecting their second child.

Black made the pregnancy annoucement at a press event for his new comedy Please Be Kind Rewind. He and Haden already have a 1 1/2-year-old son.

"I've been told that two children is three times as hard as one child, but then strangely three children is easier than one," he said.