"Please Don't Go" is a song recorded and released in 1979 on the KC and the Sunshine Band album Do You Wanna Go Party. Originally written in the key of D flat, the song was the band's first love ballad, in which the subject pleads for a second chance. Shortly after the song's one-week run at number one, the group broke up and Harry Wayne Casey went solo. The song was a number-one hit on the Australian ARIA Charts, the band's fifth and final number-one hit on Billboard Hot 100 charts, and the first number-one hit of the 1980s. As the band was known as a pioneer of the disco genre, the song was released, ironically, on the same day as Disco Demolition Night in Chicago, Illinois.

The song was the first number one hit of the 1980s on the Billboard Hot 100

The song was also an international chart hit, reaching number 1 in Australia and Canada and charting in Belgium (#8), Germany (#20), Ireland (#5), the Netherlands (#7), New Zealand (#3), Norway (#4) and the UK (#3).

A sound-alike cover of Double You's arrangement by the British group KWS hit number one on the UK Singles Chart for five weeks in May 1992 and reached number six on the U.S. Billboard Hot 100. It was recorded and released after record company Network failed to secure UK distribution rights for the Double You version. The similarity between the versions resulted in Network's paying compensation to Roberto Zanetti, Double You's producer, following legal action. The KWS version was claimed to be released in honour of Nottingham Forest (European football) defender Des Walker, who was on the verge of signing for Italian team Sampdoria.

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