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.

The album was successful on the charts, reaching the top ten or top twenty in the US and several other countries around the world. On the 6 was certified triple platinum by the Recording Industry Association of America (RIAA) for shipments of three million copies in the US.

It re-entered two weeks later at number 179, before dropping to number 186 and falling off the chart the following week. Overall, On the 6 experienced a 53-week run on the Billboard 200. The album also peaked at number eight on Billboard's Top R&B/Hip-Hop Albums chart, and was certified triple platinum by the Recording Industry Association of America for shipments of over three million units. By October 2010 Billboard's Gary Trust reported that the album had sold 2.81 million copies in the United States, making it Lopez's second-bestseller overall. As of 2020, On the 6 has sold a total of 2.9 million copies, according to Nielsen Music/MRC Data.