J. Lo is the second studio album by American singer Jennifer Lopez, released in 2001 (see 2001 in music). It debuted at number one on the U.S. Billboard 200, where it stayed on the top twenty for six weeks, after the single "Love Don't Cost a Thing" had reached number three on the U.S. Billboard Hot 100. The second single, "Play", performed disappointingly, and led Lopez's team to bring in Ja Rule of The Inc. Records (then known as Murder Inc. Records) to create "Murder remixes" of "I'm Real" and "Ain't It Funny". These remixes, which are essentially different songs with the same title, both reached number one in the U.S. In July 2001, the album was re-released with the Billboard Hot 100 number-one single "I'm Real" (Murder Remix) as a bonus track (due to the usage of slurs such as "nigga", "bitch", and "fuck", the re-release came with a Parental Advisory sticker). The album was first released without a Parental Advisory sticker, despite featuring strong language and sexual content ("I'm Real", "Play", "Come Over"), similarly to Janet Jackson's All for You.

For the song "Dame", Lopez joined Puerto Rican singer Chayanne on the cha-cha-cha-beat track.