Robert Colin Stigwood was an Australian-born British-resident music entrepreneur, film producer and impresario, best known for managing Cream, Andy Gibb and the Bee Gees, theatrical productions like Hair and Jesus Christ Superstar, and film productions including the successful Grease and Saturday Night Fever. On his death, one obituary judged that he had been for a time the most powerful tycoon in the entertainment industry: "Stigwood owned the record label that issued his artists’ albums and film soundtracks, and he also controlled publishing rights – not since Hollywood's golden days had so much power and wealth been concentrated in the hands of one mogul."

Andrew Roy Gibb was an English and Australian singer and songwriter. He was the younger brother of Barry, Robin, and Maurice Gibb, musicians who had formed the Bee Gees during the mid-1960s.