The Beatles: Happiness is a Warm Gun (1968)

It was one of The Beatles favourite songs on the album that was banned by all radios over its “sexually suggestive” language and drug references.

Whilst some interpreted the gun as a “phallic symbol of virility and power" others took it to represent practice of taking heroin.

Late band member John Lennon always denied the song was about the illegal drug.

Lennon - who was a user of the opioid - said: “'Happiness Is A Warm Gun’ was another one which was banned on the radio – they said it was about shooting up drugs. But they were advertising guns and I thought it was so crazy that I made a song out of it. It wasn’t about ‘H’ at all.”