Johnny Knoxville on 'Jackass Forever' : It's Been a Minute It's our 500th episode and what better way to celebrate than with Johnny Knoxville's first appearance on NPR? We couldn't think of a better milestone. In this episode, Sam and Johnny chat about his latest Jackass endeavor with Jackass Forever while also looking back at the reality show that started it all — and how its very first stunt actually shut down production. They also discuss Jackass' queer fanbase and Johnny's time in therapy. Come for the talk about raunchy stunts, stay for the Johnny Knoxville School of Radical Acceptance!