"How Deep Is Your Love" is a pop ballad written and recorded by the Bee Gees in 1977 and released as a single in September of that year. It was ultimately used as part of the soundtrack to the film Saturday Night Fever. It was a number-three hit... Wikipedia
Recorded: 1977
B-side: "Can't Keep a Good Man Down"
Studio: Château d'Hérouville (France); Criteria (Miami)