Claim: J.Lo was considered more daring than On the 6 due to explicit language and sexual lyrics.

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 -LRB- 1999 -RRB- . 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 , -LRB- her boyfriend at the time -RRB- , 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 .   `` Love Do n't Cost a Thing '' was released as the album 's lead single on December 2 , 2000 , which reached the top five in the United States and number one in United Kingdom . The album 's second single , `` Play '' -LRB- released on March 27 , 2001 -RRB- , reached the top twenty in most countries and top five in United Kingdom . The Latin pop song , titled `` Ai n't It Funny '' was released as the album 's third single on June 20 , 2001 . `` I 'm Real '' was serviced to radio as the album 's fourth and final single on September 4 , 2001 . To further its success , record executives at Epic recruited Ja Rule of Murder Inc Records , who is popular in the Urban market , to create a remix of the song , `` I 'm Real -LRB- Murder Remix -RRB- '' . The remix , which featured Ja Rule , shifted Lopez 's personal style from pop to a more hip-hop and urban-oriented sound . It was the number one song in the United States at the time of the September 11 attacks for 5 non-consecutive weeks .