Janet Damita Jo Jackson (born May 16, 1966) is an American singer, songwriter, actress, and dancer. She is noted for her innovative, socially conscious and sexually provocative records, as well as elaborate stage shows. Her sound and choreography became a catalyst in the growth of MTV, enabling her to rise to prominence while breaking gender and racial barriers in the process. Lyrical content that focused on social issues and lived experiences set her reputation as a role model for youth.

The tenth and youngest child of the Jackson family, Jackson began her career as a child actress, with roles in the television series Good Times (1977–1979), Diff'rent Strokes (1980–1984), and Fame (1984–1985). She signed a recording contract with A&M Records in 1982 and became a pop icon following the releases of the albums Control (1986) and Rhythm Nation 1814 (1989). Her collaborations with record producers Jimmy Jam and Terry Lewis incorporated a variety of music genres, which led to crossover success in popular music and influenced the development of the new jack swing fusion genre. In the 1990s, Jackson became one of the highest-paid artists in the industry, signing two record-breaking multimillion-dollar contracts with Virgin Records. She established her image as a sex symbol with a leading role in the film Poetic Justice (1993), and the albums Janet (1993) and The Velvet Rope (1997). Billboard named her the second most successful artist of the decade in the United States.

The release of her seventh studio album All for You in 2001 coincided with Jackson being the subject of the first MTV Icon special. By the end of the year, she joined her brother Michael as one of the few artists to score ten number-one singles on the Billboard Hot 100. However, the backlash from the 2004 Super Bowl XXXVIII halftime show controversy resulted in an industry blacklisting under the direction of Les Moonves, then-CEO of CBS. Jackson subsequently experienced reduced radio airplay, televised promotion and sales figures from that point forward. After parting ways with Virgin Records, she released her tenth studio album Discipline (2008), her only album with Island Records. In 2015, she partnered with BMG Rights Management to launch her own record label, Rhythm Nation, as well as to release her eleventh studio album Unbreakable (2015). Jackson has continued to release music and perform, with the Together Again Tour (2023–2024) becoming the highest-grossing tour of her career.

Jackson has sold over 100 million records, making her one of the world's best-selling music artists. She holds the record for the most consecutive top-ten entries on the US Billboard Hot 100 by a female artist (18) and remains the only artist in the history of the chart to have seven singles from one album (Rhythm Nation 1814) peak within the top five positions. In 2008, Billboard placed her number seven on its list of the Hot 100 All-Time Top Artists, and in 2010 ranked her fifth among the "Top 50 R&B/Hip-Hop Artists of the Past 25 Years". In 2016, the magazine named her the second most successful dance club artist. Her accolades include five Grammy Awards, eleven Billboard Music Awards, eleven American Music Awards, a star on the Hollywood Walk of Fame, and eight Guinness World Records entries. In 2019, she was inducted to the Rock and Roll Hall of Fame.

Janet Damita Jo Jackson was born on May 16, 1966, in Gary, Indiana. She was the youngest of ten children in the Jackson family, a working-class African-American family living in a two-bedroom house on Jackson Street. Her mother, Katherine Esther Jackson (née Scruse), played clarinet, cello, and piano, had aspired to be a country-and-western performer, and worked part-time at Sears. Her father, Joseph Walter "Joe" Jackson, a former boxer, was a crane operator at U.S. Steel and played guitar with a local rhythm and blues band, the Falcons, to supplement the family's income. Janet's great-great-grandfather, July "Jack" Gale, was a US Army scout. Family lore held that he was also a Native American medicine man. Janet grew up with two sisters (Rebbie and La Toya) and six brothers (Jackie, Tito, Jermaine, Marlon, Michael and Randy). Another brother, Marlon's twin Brandon, died shortly after birth. The Jacksons were devout Jehovah's Witnesses, although Janet would later refrain from organized religion.

At a young age, Jackson's brothers began performing as the Jackson 5 in the Chicago-Gary area. In March 1969, they signed a record deal with Motown, and soon had their first number-one hit. The family then moved to the Encino neighborhood of Los Angeles. Jackson had initially desired to become a horse racing jockey or entertainment lawyer, with plans to support herself through acting. Despite this, she was anticipated to pursue a career in entertainment and considered the idea after recording herself in the studio.

At age seven, Jackson and her sisters performed with the Jackson 5 for their revue at the MGM Casino on the Las Vegas Strip. A biography revealed her father, Joseph, was emotionally withdrawn and told her to address him solely by his first name as a child. She began acting in the variety show The Jacksons in 1976.

In 1977, she was selected to have a starring role as Penny Gordon Woods in the sitcom Good Times. She later starred in A New Kind of Family and later got a recurring role on Diff'rent Strokes, portraying Charlene Duprey from seasons three to six. Jackson also played the role of Cleo Hewitt during the fourth season of Fame, but expressed indifference towards the series, largely due to the emotional stress of her secret marriage to R&B singer James DeBarge. Jackson later elaborated on her time on the show in an interview with Anderson Cooper, revealing that the cast would occasionally play pranks on her, but she spoke fondly of them.