Unfortunately, this is another instance where there isn’t a lot of information available about the artist or the song. Depending on what you’re reading, the song was either released in 1967 or 1968. It was written by Chip Taylor (who also wrote “Wild Thing” and other hits) and Billy Vera (another accomplished songwriter).
The song went widely under-appreciated for two main reasons. The first would be the large amounts of amazing music being released in 1967 and 1968 overshadowing its release; the second was the minimal effort put forth by the record company to get the song airtime.