Johnny Knoxville was born on March 11, 1971 in Knoxville, Tennessee, USA as Philip John Clapp. He is a writer and producer, known for Bad Grandpa (2013), The Dukes of Hazzard (2005) and Teenage Mutant Ninja Turtles (2014). He has been married to Naomi Nelson since September 24, 2010. They have two children. He was previously married to Melanie ...