"Saturday Night Fever, as a movie and an album, plus a brace of hit singles off of it, suddenly made disco explode into mainstream, working- and middle-class America with a new immediacy and urgency, increasing its audience ten-fold overnight ... Saturday Night Fever is virtually indispensable as a Bee Gees album, not just for the presence of an array of songs that were hits in their own right - and which became the de facto soundtrack to a half-decade of pop culture history - but because it offered the Gibb Brothers as composers as well as artists, with their work recorded by Yvonne Elliman ("If I Can't Have You"), and Tavares ("More Than a Woman"), and it placed their music alongside the work of Kool & the Gang and MFSB. In essence, the layout of the soundtrack was the culmination of everything they'd been moving toward since the Mr. Natural album".