Eagles are an American rock band that was formed in Los Angeles, California in the early 1970s. With five number-one singles and four number-one albums, the Eagles were among the most successful recording artists of the 1970s.

At the end of the 20th century, two of their albums, Eagles: Their Greatest Hits 1971–1975 and Hotel California, ranked among the ten best-selling albums according to the Recording Industry Association of America.

The best-selling studio album Hotel California is rated as the 37th album in the Rolling Stone list "The 500 Greatest Albums of All Time", and the band was ranked #75 on Rolling Stone's 2004 list of the 100 Greatest Artists of All Time.

They are also the best-selling American group ever, with Eagles: Their Greatest Hits 1971–1975 being the best-selling album in the U.S. to date. The Eagles also provided the theme tune for The Hitch Hikers Guide to the Galaxy by Douglas Adams, first broadcast on BBC Radio 4 in 1978, with a song called Journey of the Sorcerer.

The Eagles broke up in 1980 and were disbanded for 14 years, but reunited in 1994 for Hell Freezes Over ("For the record, we never broke up. We just took a fourteen year vacation."). They have toured intermittently since then, and were inducted into the Rock and Roll Hall of Fame in 1998.

On June 8, 2007, Don Henley announced at a concert that a new album, Long Road Out of Eden, would be out on October 30, 2007. This will be the first full studio album by the band in 28 years (1994's Hell Freezes Over was a mix of live and new studio tracks). The Eagles are also planning a tour throughout 2008 after the release of this album.