"Turquoise" is a song written and recorded by British singer-songwriter Donovan. The "Turquoise" single was released in the United Kingdom on 30 October 1965 through Pye Records (Pye 7N 15984) and charted, peaking at No.30. The "Turquoise" single was backed with "Hey Gyp (Dig the Slowness)" and only released in the United Kingdom. "Turquoise" was released as the b-side on "To Try for the Sun" in the United States. The song was written about Donovan's friend Joan Baez, with whom he claimed he was in love. Baez recorded a version of the song in 1967 (album: Joan). The lyric begins: