Knoxville slams Simpson affair rumours

Jackass hell-raiser Johnny Knoxville has slammed rumours he's romanced Jessica Simpson behind her husband Nick Lachey's back.

The 33-year-old is furious about reports he seduced Simpson while they filmed movie remake The Dukes Of Hazzard, insisting the stars of MTV reality show Newlyweds: Nick And Jessica are virtually inseparable.

He tells gossip website pagesix.com: "It's such bulls**t. He visits her on the set, and she is just the sweetest girl."