Jennifer Lynn Affleck (née Lopez; born July 24, 1969), also known as J.Lo, is an American singer, actress, and dancer. In 1991, she began appearing as a Fly Girl dancer on the sketch comedy television series In Living Color, where she remained a regular until she decided to pursue an acting career in 1993. For her first leading role in Selena (1997), she became the first Hispanic actress to earn over US$1 million for a film. She went on to star in Anaconda (1997) and Out of Sight (1998), and established herself as the highest-paid Hispanic actress in Hollywood.

Lopez ventured into the music industry with her debut studio album On the 6 (1999), which helped propel the Latin pop movement in American music, and later starred in the psychological horror The Cell (2000). With the simultaneous release of her second studio album J.Lo and her romantic comedy The Wedding Planner in 2001, she became the first woman to have a number-one album and film in the same week. Her 2002 release, J to tha L–O! The Remixes, became the first remix album in history to debut atop the US Billboard 200. Later that year, she released her third studio album, This Is Me... Then and starred in the film Maid in Manhattan.

After starring in Gigli (2003), a critical and commercial failure, Lopez starred in the successful romantic comedies Shall We Dance? (2004) and Monster-in-Law (2005). Her fifth studio album, Como Ama una Mujer (2007), had the highest first week sales for a debut Spanish album in the United States. Following a relatively unsuccessful period, she returned to prominence in 2011 with her appearance as a judge on American Idol and released her seventh studio album, Love?, spawning the international hit "On the Floor". From 2016 to 2018, she starred in the police drama series Shades of Blue and performed a residency show, Jennifer Lopez: All I Have, at Planet Hollywood Las Vegas. She also produced and served as a judge on World of Dance (2017–2020). In 2019, she garnered critical acclaim for her performance as a stripper in the crime drama Hustlers.

Lopez is considered a Latin pop culture icon, and is often described as a triple threat entertainer. With a cumulative film gross of US$3.1 billion and estimated global sales of 80 million records, she is considered the most influential Hispanic entertainer in North America. In 2012, Forbes ranked her the world's most powerful celebrity, and the 38th most powerful woman in the world. Time listed her among their 100 most influential people in the world in 2018. Her most successful singles on the US Billboard Hot 100 include the number one singles "If You Had My Love", "I'm Real", "Ain't It Funny" and "All I Have". For her contributions to the recording industry, she has a landmark star on the Hollywood Walk of Fame, and has received the Billboard Icon Award and the Michael Jackson Video Vanguard Award, among other honors. Her other ventures include beauty and clothing lines, fragrances, a production company and a charitable foundation.