First recorded (as “All the Man I Need”) by Linda Clifford (1981).
Hit versions by Sister Sledge (R&B #45 1982), Whitney Houston (US #1/MOR #1/R&B #1/CAN #1/UK #13 1991).
From the wiki: “‘All the Man That I Need’ is a song written by American songwriters Dean Pitchford and Michael Gore with Linda Clifford in mind when they wrote the song. The song was first recorded by Clifford in 1982 as ‘All The Man I Need’, for her album I’ll Keep on Loving You. It was released it as a single, but it failed to chart.