"I Can't Let Go" is a song co-written by Al Gorgoni and Chip Taylor, who also wrote "Wild Thing". "I Can't Let Go" was originally recorded by blue-eyed soul singer Evie Sands' on George Goldner's Blue Cat label, which was popular in New York City in 1965. The song became popular in 1966 for the group The Hollies, who charted at number two in the UK Singles Chart with their version. Linda Ronstadt covered the song in 1980 and had a number 31 hit on the US Billboard Hot 100 chart.