Demis Roussos to Bing Crosby in 6 Steps
- Demis Roussos was born on June 15
- June 15 is the birthday of Harry Nilsson
- Harry Nilsson wrote Open Your Window
- Open Your Window was recorded by Ella Fitzgerald
- Ella Fitzgerald is one of the many artists that recorded Makin' Whoopee!
- Makin' Whoopee! was recorded by many artists including Bing Crosby