where did the phrase out of the blue come from
Out of the blue (idiom) "Out of the blue" is an informal English language idiom that describes an event that occurs unexpectedly, without any warning or preparation.[1] It is used as an adverb. The "blue" in the phrase refers to the sky, one from which a sudden thunderstorm is unexpected.[2]
Summertime Blues "Summertime Blues" is a song co-written and recorded by American rockabilly artist Eddie Cochran.[2] It was written by Cochran and his manager Jerry Capehart. Originally a single B-side, it was released in August 1958[1] and peaked at number 8 on the Billboard Hot 100 on September 29, 1958 and number 18 on the UK Singles Chart. It has been covered by many artists, including being a number-one hit for country music artist Alan Jackson, and scoring notable hits in versions by The Who, Blue Cheer and Brian Setzer, the latter of whom recorded his version for the 1987 film La Bamba, where he portrayed Cochran. Jimi Hendrix performed it in concert.[3][4][5][6]