"my wife naomi and i are super happy to announce that we are having another little bambino in the fall," he wrote on his Facebook page. "my 15-year-old daughter madison is very excited about it, and her 16-month-old little brother rocko has, well, no clue. wahoo!!"
The couple got married last September in Los Angeles after having their son, Rocko Akira Clapp, in December 2009. This will be their second baby together. The 10-year "Jackass" jokester has a daughter, Madison, with ex-wife Melanie Clapp, whom he divorced in 2007.
— Nardine Saad
Photo: Johnny Knoxville and Naomi Nelson in New York on Dec. 6. Credit: Theo Wargo / Getty Images.