Robert Downey Jr. and Susan Levin: 'We're having a boy'

Robert Downey Jr. and his wife Susan Levin are expecting a boy. The 46-year-old actor let the cat out of the bag during his appearance Monday on the "Tonight Show with Jay Leno." "I am not permitted to discuss it," he said. "I can't say a word ... We're having a boy."

The "Iron Man" star, who told Leno his son is due in "late February," also has an 18-year-old son with his first wife.