"In Da Club" is a hip hop song performed by an American rapper 50 Cent from his commercial debut album Get Rich or Die Tryin'. The song was produced by Dr. Dre with co-production from Mike Elizondo. 50 Cent, Dr. Dre, and Elizondo wrote the song. The track was released in January 2003 as the album's lead single and it was positively received by music critics.

"In Da Club" peaked at number one on the Billboard Hot 100, becoming 50 Cent's first number one single. At the 46th Grammy Awards, it was nominated for Best Male Rap Solo Performance and Best Rap Song. The song's music video won Best Rap Video and Best New Artist at the 2003 MTV Video Music Awards. In 2009, the single was listed at number 24 in Billboard's Hot 100 Songs of the Decade. It was listed at number 13 in Rolling Stone's "Best Songs of the Decade". In 2010, it was ranked 448th in the Rolling Stone's 500 Greatest Songs of All Time list.

After 50 Cent was discovered by rapper Eminem in 2002, he flew to Los Angeles where he was introduced to record producer Dr. Dre. "In Da Club" was the first of seven tracks he recorded in five days with Dr. Dre. 50 Cent described the studio sessions, saying:

Curtis James Jackson III (born July 6, 1975), better known by his stage name 50 Cent, is an American rapper, entrepreneur, investor, record producer, and actor. He rose to fame with the release of his albums Get Rich or Die Tryin' (2003) and The Massacre (2005). His album Get Rich or Die Tryin' has been certified eight times platinum by the RIAA.

Born in the South Jamaica of Queens, New York City, Jackson began drug dealing at the age of twelve during the 1980s crack epidemic. After leaving drug dealing to pursue a rap career, he was shot at and struck by nine bullets during an incident in 2000. After releasing his album Guess Who's Back? in 2002, Jackson was discovered by rapper Eminem and signed to Interscope Records. With the help of Eminem and Dr. Dre, who produced his first major commercial successes, Jackson became one of the world's highest selling rappers. In 2003, he founded the record label G-Unit Records, which signed several successful rappers such as Young Buck, Lloyd Banks, and Tony Yayo.