Phil Spector
The Beatles handed over the rough tapes of their unfinished Get Back album for Spector to post-produce, after John Lennon and George Harrison both worked successfully with him on "Instant Karma!'", which became a hit single for Lennon. Let it Be was the title for the finished album (and movie, filmed during the recording sessions). Beatles fans bought and enjoyed the album and its singles, but some fans and experts disliked portions of Spector's work. Paul McCartney hated the changes Spector made to "The Long and Winding Road", which he meant to have a simple accompaniment, but was released with a choir and orchestra added. McCartney never recorded with Spector, but the other three Beatles worked with him several times, on solo recordings.