Jessica Simpson released her first new single in more than a decade and announced a new EP called ‘Nashville Canyon’

The singer's latest single, "Use Your Heart Against Me," drops Feb. 21. "It was a sexy song to write," Jessica Simpson tells PEOPLE.

Could Jessica Simpson be the country rockstar the world never knew it needed? Since stepping onto the pop music scene as a teen idol in the late 1990s, Simpson has navigated numerous phases of reinvention—each more compelling than the last.