21
21 is the second studio album by the English singer-songwriter Adele. It was released on 24 January 2011[1] in Europe by XL Recordings and on 22 February 2011 in North America by Columbia Records. The album was named after the age of the singer during its production. 21 shares the Motown and soul influences of her 2008 debut album 19, but also draws influence from the American country and Southern blues music that Adele started listening to during the North American leg of her tour An Evening with Adele.
In February 2013, 21 reached two full years on the Billboard 200, never charting lower In March 2013, after Adele won an Academy Award for "Skyfall", the album reentered the top 10 of the Billboard 200. This marked the album's 81st week in the top 10. Only two other albums have spent as much time in the top 10: Born in the U.S.A. and The Sound of Music. In November 2013, it was announced that 21 had become the first album to sell three million digital copies in the United States and that the album is the 13th best-selling overall in the United States since Nielsen SoundScan began tracking sales in 1991.