"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 the song, 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, their sixth and final number-one hit in Canada on the RPM national chart as well as their fifth and final number-one hit on the U.S. Billboard Hot 100 charts, and the first number-one hit of the 1980s. "Please Don't Go" was actually part of a double-sided single, with the flip slide "I Betcha Didn't Know That" being released to R&B stations and hitting number 25 on the R&B chart.