Song was written by Mike D'arbo especially for Chris Farlowe and was on his 1966 album the Art of Chris Farlowe and then released as a single in 1967, subsequently covered by both Rod Stewart and the Stereophonics
The vocalist is called Fin. He was in 80's rock band Wasted, and replaced Paul Young in the Q-Tips. According to Big George, it may be released next year.