A box set of outtakes and remasters of John Lennon's 1972 "Some Time in New York City" album was withdrawn last year, apparently because Universal Records wanted to remove the track "Woman is the N***** of the World" and Lennon's son was insisting it be included.
At the time Lennon recorded it - based on a slogan coined by his Japanese wife - he was very involved with the Black Panthers, Michael X ("The Black Muslims" leader in London, later executed for murdering a British MP's daughter) and Black activist and comedian Dick Gregory who gave him their approval for its release, it was the white liberals who got upset about it and it proved to be his first real flop after it got banned by virtually every radio station. He did get to perform it on a US TV chat show though, reading out a statement beforehand which included the n word three times which was greeted by an enthusiastic round of applause.