Vidal Sassoon says Mia Farrow’s famous cropped haircut was done by mistake.

The world-famous hairdresser was flown to Los Angeles by filmmaker Roman Polanski, who was directing the actress in 1968 movie Rosemary’s Baby, and asked to give her a new look.

Mia, however, had had an argument with someone close to her and had taken the scissors to her hair, leaving Vidal with a difficult task.

He revealed, “I said, Mia, you’ve really ballsed it up. I’m going to have to go very short.” The pixie-like crop became one of the most sought-after looks in the world and millions of women copied Mia’s style.

Vidal also revealed that he was “impossible” to work with when he was younger because he was so obsessed with hair: “I was impossible. It was all hair, hair, hair. Ricci Burns (60s hairstylist and now a fashion designer) said that I was quite mad and impossible to work with.”