“Rain” is a song by the English rock band the Beatles first released in June 1966 as the B-side of the “Paperback Writer” single. Both songs were recorded during the sessions for the album Revolver though neither appears on that album.
Written by John Lennon although credited to Lennon–McCartney, “Rain” has been called the Beatles’ finest B-side, noted for its slowed-down rhythm track and backwards vocals, both of which were a hint of things to come on Revolver, released two months later.
Three promotional films were made for the song “Rain”. These videos, along with other Beatles videos at the time, sparked George Harrison to say during the Beatles Anthology, “So I suppose, in a way, we invented MTV.”