Why were The Bee Gees so famous in the 1970s?

The Bee Gees gained immense fame in the 1970s due to their distinctive falsetto harmonies and a string of chart-topping hits that defined the disco era, including "Stayin' Alive" and "Night Fever." Their contributions to the soundtrack of the film "Saturday Night Fever" catapulted them to international stardom, making them synonymous with Disco Music. Additionally, their songwriting prowess, producing hits for other artists, solidified their status as influential figures in the music industry during that decade.