Nielsen's interest in magic started at a young age after watching his barber perform a few cigarette tricks.
One of his first ideas for a magic trick was to make a trumpet toot as it floated in thin air.
Nielsen developed other aspects of his musical act, including a flute that disintegrates into silver dust and coins that are dropped melodically onto a vertical xylophone.
Nielsen has worked in London, Helsinki, Istanbul, Tokyo, Caracas, Santiago, Las Vegas, Sydney, and Monte Carlo.
He was the manufacturer of the Nielsen line of products, which include among others, Vanishing Bottles, Rubber Doves and Manipulation Cards.