"Jenny from the Block" is a song by American singer Jennifer Lopez, which features American rappers Jadakiss and Styles P, both members of the Lox. It was released by Epic Records on September 26, 2002, as the lead single from her third studio album, This Is Me... Then (2002). The song, first leaked online, was written by Lopez, Troy Oliver, Mr. Deyo, Samuel Barnes, and Jean Claude Olivier. Cory Rooney, Olivier, Barnes, and Oliver produced the song. Another version of the track features solely Lopez, which was part of the Brazilian edition of the album.

Jennifer Lynn Affleck, also known by her nickname J.Lo, is an American actress, singer, and dancer. Often dubbed the "Queen of Dance", Lopez is regarded as one of the most influential entertainers of her time, credited with breaking barriers for Latino Americans in Hollywood and helping propel the Latin pop movement in music. She is also noted for her impact on popular culture through fashion, branding, and shifting mainstream beauty standards.