He was the greatest whistler who ever lived and he passed away at the age of 91 in January.

Ronni Ronalde was a virtuoso whistler, yoddler and bird song impersonator. Because of these natural gifts Ronalde became one of the most celebrated of the music hall greats in Britian in the 1950s.

Stephen Dixon recently wrote a piece about Ronalde for the Guardian and joined Tom Dunne on Monday night's show to discuss a remarkable career and gift.

Dixon explained during the interview that a siffleur's (whistler) greatest asset is his teeth, as it is one's pearly whites which channel the sound in the mouth. Even when Ronalde visited the dentist he would refuse anaesthetic for fear of losing control of his precious teeth.

Ronalde went on to perform at Radio City, New York's iconic venue, and managed to fill the theatre every night for ten weeks. Even Marilyn Monroe, after witnessing his performance, said that his whistling sent a shiver down his spine.

Click on the link above to hear the full interview.