On the 6

On the 6 is the debut studio album by American singer and actress Jennifer Lopez. It was released on June 1, 1999, by the Work Group. Lopez worked with several producers on the album, including Rodney Jerkins, Cory Rooney, Dan Shea and her boyfriend at the time, rapper and record producer Sean "Puffy" Combs. A Spanish edition of the album was released on November 24, 1999. This version of the album shuffles the track list, omitting "Feelin' So Good", while including an all-new Spanish track ("Es Amor"), in addition to Spanish versions of "Open Off My Love" ("El Deseo de Tu Amor"), "Promise Me You'll Try" ("Amar es Para Siempre") and "Waiting for Tonight" ("Una Noche Más"), the latter of which also appeared on the album's original release as a bonus track. The remainder of the tracks on this edition appear as they did on the album's original release.

Critics greeted Lopez's musical debut with a generally positive response. On the 6 was praised for its conservative, though dynamic, musical style and combination of Latin with pop and R&B. Critics commented on Lopez's vocal ability and many generally gave good remarks for her versatility and somewhat "seductive" and "sultry" singing, however, some critics found the vocals quite underwhelming. The album was successful on the charts, reaching the top ten or top twenty in the United States and several other countries around the world. On the 6 went on to sell three million copies in the US, being certified triple platinum by the Recording Industry Association of America (RIAA), and an additional three million copies worldwide.

The album produced five singles, three of which hit the main US Hot 100 chart. "If You Had My Love" peaked at number one in the US, while "Waiting for Tonight" peaked at number eight. "No Me Ames", a ballad with Lopez's then-future husband, now ex-husband, Marc Anthony, did not reach the US Hot 100 chart, but was a hit on Billboard's Latin chart, while "Feelin' So Good" hit number 51 on the Hot 100, and peaked at number one on the US Dance Club Songs chart. A fifth and final single, "Let's Get Loud" did not chart on the Hot 100 due to the lack of a physical release in the US, but became a major hit in several other countries. At the time of the album's release, several other Latin recording artists (including Ricky Martin, Shakira, and Marc Anthony) were achieving success on the mainstream Billboard 200 album chart and the Hot 100 singles chart; this was termed a Latin "explosion".