Johnny Knoxville and Naomi Nelson: Expecting!

Jackass star Johnny Knoxville is going to be a dad for the second time.

His girlfriend of nearly a year, Naomi Nelson, is three months pregnant.

"Yes, they are expecting and very excited," his rep said.

Johnny Knoxville already has a 13-year-old daughter, Madison, with ex-wife Melanie Clapp. He and Clapp wed in May 1995 and were married for 12 years.

Knoxville filed for divorce from Clapp in 2007, citing irreconcilable differences. He and Naomi Nelson started dating at some point last year.

Congratulations to the parents-to-be!