Baby girl for Johnny Knoxville

Johnny Knoxville's wife has given birth to their second child, a daughter named Arlo.

Johnny Knoxville's wife has given birth to their second child.

Naomi Nelson and the 'Jackass' star welcomed daughter Arlo into their family on Thursday (06.10.11), joining their 22-month-old son Rocko and Johnny's daughter Madison, 15, from his first marriage to Melanie Lynn Clapp.

Johnny tweeted on Friday (07.10.11): "Yesterday Oct 6th Naomi, Madison, Rocko & I welcomed a brand new baby girl into our family. Her name is Arlo & mommy & baby r doing great!!"

Johnny - who married Naomi in September 2010 - announced her pregnancy on Facebook earlier this year.

He wrote: "my wife naomi and i are super happy to announce that we are having another little bambino in the fall. my 15-year-old daughter madison is very excited about it, and her 16-month-old little brother rocko has, well, no clue. wahoo!!(sic)"

Johnny - whose real name is Philip John Clapp - previously revealed he "hoped" he was a good parent but had to rethink his approach when he once found himself "ordered to the ground" by police when he was babysitting Madison.

The 40-year-old actor said: "I hope I'm a good father. Sometimes I get excited and things happen and I'm trying to do good.

"I was babysitting my daughter and her friends, they were all at the house one day I set up the backyard as a shooting gallery with helium balloons and whatnot and we were having fun shooting the helium balloons when the cops burst in and ordered me down to the ground with guns.

"(Cops) came in my house! Apparently someone said there were shots fired."