What was the bee gees top selling album?

The Bee Gees' top-selling album is "Saturday Night Fever", released in 1977. The album was the soundtrack for the movie of the same name starring John Travolta and was a massive commercial success. It topped the charts in the US, UK, and many other countries around the world. The album features many of the Bee Gees' most popular hits, including "Stayin' Alive", "How Deep Is Your Love", and "Night Fever". "Saturday Night Fever" has sold over 40 million copies worldwide, making it one of the best-selling albums of all time.