Jessica Simpson is an American pop/R&B singer-songwriter and actress. Simpson emerged as a teen-pop sensation with the release of her debut single, "I Wanna Love You Forever" in 1999. For much of her career, Simpson sung pop and R&B. However, after an almost decade long career, Simpson made a major transition from pop and R&B to country pop. She is well-known for her singles "Irresistible" and "A Public Affair".