"Losing My Mind" is a song written by Stephen Sondheim for the 1971 musical Follies for the character of a former showgirl Sally Durant Plummer.
"Losing My Mind" was first performed by Dorothy Collins in the role of "Sally Durant Plummer" in the original Broadway production of Follies.
The song has been covered by many artists including Shirley Bassey and Michael Ball.
In the UK Singles Chart, the most successful version has been by Liza Minnelli, reaching number six. It was the lead single from her 1989 album, Results, produced by Pet Shop Boys and Julian Mendelsohn. The 12" release peaked at number eleven on the Billboard Maxi Singles Sales chart. It also peaked at number twenty-six on the American dance chart.