Earth is the third solo album by the Greek artist Vangelis, released in 1973. In contrast to Heaven and Hell (1975) and some soundtracks by Vangelis from this period, Earth was not released on compact disc in the 1980s — it was not until 1996 that a CD version was made available, and then only in Greece.
In 1974 two left-over tracks from the recording sessions for Earth were issued as a single, on the WWA label: "Who", written by Fitoussi and Dassin on the A-side and featuring vocals by the former, and the instrumental "Sad Face", by Vangelis himself, on the B-side.
Vangelis plays keyboards (Hammond L100 organ, Tornado reed organ, Selmer Clavioline), percussion, various ethnic instruments (flute, tabla) and provides background vocals. Most of the synthetic organic sounds on the album came from his Hammond L100 Organ put through a Binson Echorec and some other effects. Collaborating artists are Anargyros Koulouris (guitars, background vocals, and lute) and Robert Fitoussi (bass guitar and lead vocals on tracks 1, 4, 6, and 8). The latter became better known in the 1980s as "F. R. David" when he recorded the hit single "Words (Don't Come Easy)". Warren Shapovitch provided the narration on the tracks "We Were All Uprooted" and "A Song".