Jessica Ann Johnson (née Simpson, born July 10, 1980) is an American singer, actress, and fashion designer. After performing in church choirs as a child, Simpson signed with Columbia Records in 1997, aged seventeen. Her debut studio album, Sweet Kisses (1999), sold two million copies in the United States and was led by the Billboard Hot 100-top three single "I Wanna Love You Forever". Simpson adopted a more mature image for her second studio album, Irresistible (2001), and its namesake lead single track peaked within the top 20 of the chart. The album received gold certification by the Recording Industry Association of America (RIAA). Simpson's third studio album, In This Skin (2003), sold three million copies in the United States.

During her earlier career, Simpson became known for her relationship with and later marriage to Nick Lachey, with whom she also appeared on the MTV reality television series Newlyweds: Nick and Jessica (2003–2005). Following the release of her first Christmas album ReJoyce: The Christmas Album (2004), which was certified gold, Simpson made her film debut as Daisy Duke in The Dukes of Hazzard (2005). She also recorded a cover of "These Boots Are Made for Walkin'" for the film's soundtrack. In 2006, she released her fifth studio album, A Public Affair and appeared in the romantic comedy film Employee of the Month. With the release of her sixth studio album Do You Know (2008), she moved into the country music genre. A second Christmas album titled Happy Christmas followed in 2010. Simpson has sold 20 million albums worldwide.

Aside from her musical pursuits, Simpson launched The Jessica Simpson Collection in 2005, a fashion-focused line with 34 product categories which has earned over US$1 billion in revenue. She also starred in the reality television series The Price of Beauty in 2010 and judged clothing designs on two seasons of Fashion Star from 2012 to 2013.