Luke's whistling is unique as he uses his tongue and roof of his mouth rather than his lips in the more common pucker style
In his professional life, Janssen is CEO and founder of Tigerspike, a technology driven personal media company. He also competed in the 2004 Sydney to Hobart race on the Abbot Tout yacht.
- Jessica Satherly (April 28, 2009). "King of whistles challenges Boyle for top talent". Metro (British newspaper).
- 2009 World Whistling Competition Winners