Britney Spears, Oops!...I Did It Again: 1,319,000
Release Date: 3/27/2000
Britney had already set sales records with her debut, ...Baby One More Time, the previous year; the album went double platinum within a month, on the strength of the title track's pop chart performance. A few months after that, she graced the cover of Rolling Stone with an iconic, controversial, and provocative photo. In Summer 1999, she toured North America, recorded a new album, and then went overseas, appearing on TV and touring in Europe. With so much lead-up to her sophomore album's release, the record sold 1.3 million copies in its first week, and remains the highest one-week sales numbers for a female artist.