Phil Spector, a legendary producer who predated the Beatles, had always wanted to work with them. Allen Klein brought Spector to England early in 1970 to meet them. John Lennon and George Harrison got along well with Spector, who produced a record of Lennon's song "Instant Karma!" the same day he wrote it. Lennon and Harrison gave their OK for Spector to work on the recordings, and Ringo Starr played along with the musicians Spector hired, to make overdubs. This went against the original plan to present the songs live, but was accepted to "sweeten" – and finish – the recordings.