Roots of Carl Douglas

Biddu Appaiah, known mononymously as Biddu, is an Indian-British singer-songwriter, composer, and music producer who composed and produced many worldwide hit records during a career spanning five decades. Considered one of the pioneers of disco, Euro disco, and Indian pop, he has sold millions of records worldwide, and has received an Ivor Novello award for his work. He has been ranked at number 34 on NME's "The 50 Greatest Producers Ever" list.

Eric Norman Woolfson was a Scottish songwriter, lyricist, vocalist, executive producer, pianist, and co-creator of the band The Alan Parsons Project, who sold over 50 million albums worldwide. Woolfson also pursued a career in musical theatre.