This was written and produced by Bernard Edwards and Nile Rodgers, who were leaders of the disco band Chic. Sister Sledge had been at the record label for four years without a hit. They were thinking about leaving when Edwards and Rodgers took them on and produced their first album.
Perhaps inspired by John Travolta's character in Saturday Night Fever, this song is about a disco Lothario who knocks 'em dead on the dance floor. Unusual at the time, there are some brand-name product mentions in the song, as we hear about the designers he's wearing: Halston, Gucci, Fiorucci.
This was the first big hit for Sister Sledge, a band made up of four sisters with the last name Sledge. "Mama Never Told Me" got to #20 in the UK in 1975; "Love Don't You Go Through No Changes On Me" hit #92 US the same year.
Edwards and Rodgers had proven themselves with their group Chic and were given the opportunity to produce any band on the label. They chose Sister Sledge because they were young and willing to go along with whatever they came up with.
Chic was originally supposed to record this, but when the record company didn't like "We Are Family," which Edwards and Rodgers first recorded with Sister Sledge, they had them record this instead of Chic. "We Are Family" was released as their second single and became their biggest hit.
The album was recorded at the same time as Chic's second album. The same musicians played on both.
Luther Vandross sang backup. He was a young singer at the record label still looking for his first hit.