Jessica Simpson addresses rumored Johnny Knoxville romance in memoir

There was something to that gossip about Jessica Simpson and Johnny Knoxville. Radar Online obtained an early copy of the singer turned fashion mogul’s upcoming memoir, "Open Book," out on Feb. 4, and in it she talks about becoming emotionally involved with her "Dukes of Hazzard" co-star while making the 2005 film. At the time, Simpson and Knoxville were married to other people — Nick Lachey for her and Melanie Clapp for him.