Jessica Simpson was booed this past weekend as she debuted her Country Music sound at the Country Thunder Festival in Twin Lakes, Wisconsin.
Jessica - who was dressed in tiny shorts, cowboy boots and a tight white shirt - performed covers of country tracks including Willie Nelson's 'On the Road Again' and Shania Twain's 'Who's Bed Have Your Boots Been Under?', but the unimpressed audience heckled the singer throughout, according to several sources.
One spectator, Adam Matos, claimed she "wasn't good enough."
He told the Kenosha News newspaper: "I just don't hear the country in her. I don't hear the twang. She's not good enough to be here."
Jessica - who is dating football player Tony Romo - tried to win over the crowd between songs, saying: "I don't know what your perception is of Jessica Simpson or what tabloid you buy, but I just want you to know that I'm just a girl from Texas. I'm just like you. I'm doing what I love and dating a boy."
Critics also failed to be won over by the performance, with one noting: "Many audience members found her attempt to crossover into country irritating and that her vocals lacked a southern sound."
Jessica recently revealed she wants to make country music for "the rest" of her life.
