The best-selling album in the United Kingdom is Greatest Hits, a compilation album by the British rock band Queen that was first released in 1981. As of December 2018, it has sold more than 6.3 million copies, of which approximately 124,000 have been from downloads. Queen's second greatest hits album, Greatest Hits II, has sold approximately 4 million copies since being released in 1991, and is the tenth biggest-selling album in the UK. These sales figures include 50% of sales of box sets containing both these albums and 33% of sales of box sets of all three Queen Greatest Hits albums.