Johnny Knoxville and girlfriend welcome baby boy

ohnny Knoxville and girlfriend Naomi Nelson welcomed a new baby boy Sunday night in Los Angeles.

Rocko Akira Clapp weighed 8 pounds and measured 20 inches, and our friends at Brand X say mom and son are doing just fine.


It's the second child for Knoxville, who has a teen daughter, Madison, with his ex-wife, Melanie Clapp. They were divorced in 2007.


And in case you were wondering, the "Jackass" star's real name is ...

... Philip John Clapp -- which always makes the Ministry giggle just a little.

And no, our in-house consultant advises, the birth was not filmed for the recently confirmed 3-D installment of Knoxville's "Jackass" movies.