Jessica Simpson was met with an icy reception at her live country music debut, with concertgoer booing the star's performance.

The singer announced earlier this year her plans to release a country album - despite originally making a name for herself as a pop star.

But the 28-year-old failed to impress the crowds at the Country Thunder USA Festival in Randall, Wisconsin 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 revellers reportedly heckled her efforts.

Simpson's first country album, Do You Know?, is slated to hit shelves on September 9th.