Britney Jean Spears

Oops!... I Did It Again, her second studio album, was released in May 2000. It debuted at number one in the US, selling 1,3 million copies, breaking the SoundScan record for the highest debut sales by any solo artist. The album sold over 20 million copies worldwide. Rob Sheffield of Rolling Stone said that "the great thing about Oops! – under the cheese surface, Britney's demand for satisfaction is complex, fierce and downright scary, making her a true child of rock & roll tradition." The album's lead single, "Oops!... I Did It Again", peaked at the top of the charts in Australia, New Zealand, the United Kingdom and many other European nations. The album as well as the title track received Grammy nominations for Best Pop Vocal Album and Best Female Pop Vocal Performance, respectively.
The same year, Spears embarked on the Oops!... I Did It Again World Tour, which grossed $40.5 million; she also released her first book, Britney Spears' Heart-to-Heart, co-written with her mother. On September 7, 2000, Spears performed at the 2000 MTV Video Music Awards. Halfway through the performance, she ripped off her black suit to reveal a sequined flesh-colored bodysuit, followed by heavy dance routine. It is noted by critics as the moment that Spears showed signs of becoming a more provocative performer. Amidst media speculation, Spears confirmed she was dating 'N Sync member Justin Timberlake.
• 2001–03: Britney, Crossroads and In the Zone
In February 2001, Spears signed a $7–8 million promotional deal with Pepsi, and released another book co-written with her mother, entitled A Mother’s Gift. Her third studio album, Britney, was released in November 2001. While on tour, she felt inspired by hip hop artists such as Jay-Z and The Neptunes and wanted to create a record with a funkier sound. The album debuted at number one in the Billboard 200 and reached top five positions in Australia, the United Kingdom and mainland Europe and sold over 12 million copies worldwide. Stephen Thomas Erlewine of Allmusic called Britney "the record where she strives to deepen her persona, making it more adult while still recognizably Britney. ... It does sound like the work of a star who has now found and refined her voice, resulting in her best record yet." The album was honored with two Grammy nominations—Best Pop Vocal Album and Best Female Pop Vocal Performance for "Overprotected"— and was listed in 2008 as one of Entertainment Weekly's "100 Best Albums from the Past 25 Years". The album's first single, "I'm a Slave 4 U", became a top-ten hit worldwide.