Instant Karma!
Written by John Lennon and released in February 1970, "Instant Karma!" was conceived, written, recorded, and released within ten days. Produced by Phil Spector and recorded at EMI Studios with contributions from George Harrison, Klaus Voormann, Alan White, and Billy Preston, the song reached the top five in the British and American charts and became the first solo single by a member of the Beatles to sell a million copies in the US.