Demis Roussos to Ruud Bos in 6 Steps
- Demis Roussos was born on June 15
- June 15 is the birthday of Harry Nilsson
- Harry Nilsson wrote Guess Who's Coming To Lunch
- Guess Who's Coming To Lunch was published by Six Continents Music
- Six Continents Music published Goeie Ouwe Plee
- Goeie Ouwe Plee by Willem Nijholt was arranged by Ruud Bos