Professional ratings
Review scores
Source	Rating
AllMusic
Billboard	(positive)
Entertainment Weekly	C−
NME	(3/10)
Q
Rolling Stone
Slant Magazine
Sonic.net
Wall of Sound
Yahoo! Music UK	(5/10)

J.Lo is the second studio album and most successful album to date by American entertainer Jennifer Lopez. It was released on January 23, 2001, by Epic Records. Preceding the release for the follow-up of her commercially successful debut album On the 6 (1999). On this album, Lopez had more creative control over J.Lo. Its title refers to the nickname her fans gave her, and she described it as a homage to her supporters. Lopez began recording the album under the working title 'The Passionate Journey', writing lyrics that focused on her own personal experiences. For the album, she hired producers such as Cory Rooney, Troy Oliver, Dan Shea and Sean Combs, (her boyfriend at the time), all of whom contributed to her first album. Musically, J.Lo is a pop album, which also encompasses genres such as R&B, Latin pop, retro and dance-pop. It was considered more daring than On the 6, including more explicit language and provocative lyrics about sex; it also deals with themes of empowerment and relationships.

Upon its release, the album received mixed reviews from music critics, who criticized its manufactured sound, although some praised its Spanish songs and dance material. Commercially, J.Lo became Lopez's most successful album. The album debuted at number one on the US Billboard 200, on the same week as her film The Wedding Planner, opened at the top of the domestic box office, making her the first entertainer to have both a number one film and album simultaneously. The album was certified quadruple platinum in the United States, and became the sixth best-selling album of the year worldwide.

...
Wikipedia