"(I Know) I'm Losing You" is a 1966 hit single recorded by the Temptations for the Gordy (Motown) label,[2] written by Cornelius Grant, Eddie Holland and Norman Whitfield, and produced by Norman Whitfield.
The group performed the song live on the CBS variety program The Ed Sullivan Show on May 28, 1967,[3] and in a duet with Diana Ross & the Supremes later that year, on November 19, 1967.
[4] Billboard described the song as a "blues swinger with a solid dance beat and powerful vocal workout.
"[5] Cash Box said that "the ork is throbbing, the chorus is smooth and the group tells its sad tale in exquisite fashion.
1 hit on the Billboard R&B singles chart, and reached No.