Adele's 25 has the highest US sales during a single year in a decade.
In the final chart for 2015, released on Monday by Nielsen Music, the British singer's album unsurprisingly was the top-selling album and spent its sixth week at number one.
25 sold 7.44 million copies in the United States by the end of 31 December - the most in a year since R&B star Usher's album Confessions sold 7.98 million copies in 2004.
However, Usher's album came out in March while Adele managed the massive year-end tally despite releasing 25 on 20 November.
25, full of ballads that touch on heartache and childhood nostalgia, was Adele's first album in four years and benefited from massive pent-up demand. Her previous album, 21, was the top-selling album in the United States in both 2011 and 2012.
