Mr. Blue Sky is a song by the rock group Electric Light Orchestra.
The song forms the fourth and last track on the "Concerto for a Rainy Day" suite on side three of the original two-LP set. The song features a heavily vocoded voice singing the phrase "Mister Blue Sky", (from 2:23 to 2:39, or from 2:20 to 2:34 on the 30th anniversary CD). Although the ending vocoded voice may sound like "Mister Blue Sky-yi", it is…
Sun is shinin' in the sky
There ain't a cloud in sight
It's stopped rainin', everybody's in a play
And don't you know, it's a beautiful new day, hey