Ten Years of Harmony is an official double album compilation album released by the Beach Boys in 1981, and spanning their entire Brother Records-era up to that point (1970–80), including some unreleased or rare material. Although the song "Darlin'" had originally been recorded in 1967 while the group was signed to Capitol Records, the version on Ten Years of Harmony was recorded live in 1973 for the album The Beach Boys in Concert. Ten Years of Harmony, now out of print, sold enough in its release to reach number 156 in the US.