Saturday Night Fever's soundtrack was a disco lover's dream. When it hit the scene in 1977 it was just what the masses wanted, selling 15 million copies, and remaining the best-selling movie soundtrack of all time until another movie on our list knocked it off the top spot. The iconic album features boogie classics that are essential for any disco party dance floor. The BeeGees croon "Stayin' Alive" and "More than a Woman," and you'll also hear 70s club scene standards like "Disco Inferno" and "Boogie Shoes." Get out your mirror ball, and give it another listen!