Which Eagles greatest hits album is the best-selling album in US history?

The Eagles' 'Their Greatest Hits (1971–1975)' is the best-selling album in U.S. history. Released on February 17, 1976, the compilation collects nine singles and the album track 'Desperado' from the Eagles' first four albums.

The record became a landmark almost immediately. It was the first album to receive the Recording Industry Association of America's Platinum certification, introduced in 1976 for albums shipping at least one million U.S. copies. Its RIAA certification later reached 40× Platinum, representing 40 million units in the United States under the association's certification system.

The album's title can be misleading: it does not contain every major Eagles hit, and it is not a chronological album called '1971–1975.' The dates identify the period from which the songs were drawn. Its track list includes 'Take It Easy,' 'Witchy Woman,' 'Desperado,' 'One of These Nights,' and 'Lyin' Eyes.'

Michael Jackson's 'Thriller' briefly surpassed it in certification after 2009, but the Eagles compilation regained the top position in 2018. It was also selected for preservation in the National Recording Registry in 2016.