J.Lo is the second studio album by American recording artist Jennifer Lopez. It was released from January 22, 2001 by Epic Records. The album debuted at number one on the U.S. Billboard 200 chart with 272,000 copies sold in its opening week, staying in 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 moderately but disappointingly, which 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 topped the Hot 100. This album is more urban than On The 6 as it leaned towards R&B and less of a pure pop sound.
On July 24, 2001 (coinciding with Lopez's thirty-second birthday), the album was re-released with the Murder Remix of "I'm Real" as a bonus track. The re-release came with a Parental Advisory warning, although the initial release did not come with one. Although there are quite a number of uses strong language and sexual content on the main album itself (specifically in the songs "I'm Real", "Play" and "Come Over"), many speculate that the large number of uses of strong language and racial slurs in the bonus track led the record company to add the Parental Advisory warning to the re-release of the album. This was also the case with Janet Jackson's album All for You (2001), as that album contained strong language and sexual content, but was only given a Parental Advisory sticker upon its re-release (which, coincidentally, also included a bonus remix). It is Lopez's most commercially successful album to date with nearly eight million copies sold worldwide. It is the 87th best-selling album of the 2000s decade.