“Diamonds Are Forever”, the title song, was the second James Bond theme to be performed by Shirley Bassey, after “Goldfinger” in 1964. In an interview for the television programme James Bond’s Greatest Hits, composer John Barry revealed that he told Bassey to imagine she was singing about a penis. Bassey would later return for a third performance for 1979’s Moonraker.

The original soundtrack was once again composed by John Barry, his sixth time composing for a Bond film.

With Connery back in the lead role, the “James Bond Theme” was played by an electric guitar in the somewhat unusual, blued gun barrel sequence accompanied with prismatic ripples of light, in the pre-credits sequence, and in a full orchestral version during a hovercraft sequence in Amsterdam.