Jessica SimpsonSinging star Jessica Simpson was met with an very cold reception at her live country music debut, with the audience booing her performance.The singer made an announcement earlier this year that she plans to release a country album, despite originally making a name for herself as a pop singing star. But the 28-year-old failed to impress the crowds at the Country Thunder USA Festival in Randall, Wis., on Saturday, where she debuted her new material. She also reportedly sang country covers including Willie Nelson's "On the Road Again" and Shania Twain's "Who's Bed Have Your Boots Been Under?," but concertgoers reportedly heckled her efforts. Simpson's first country album, "Do You Know?," is slated to hit shelves on September 9.
