Only just seen this thread. The original version of Hang On Sloopy is My Girl Sloopy by the Vibrations, a big play in Mod clubs in 1964, better imo than the McCoys, but that's just me. Fever is a good version by the McCoys, prefer it to their Sloopy, and the b side is Sorrow, later a hit for the Merseys.
Hang On Sloopy may have been played in clubs at the time, but don't recall it myself. I do remember Do You Believe In Magic being played, the melody has a slight resemblance to Heatwave to my ears. Plenty of white poppy/early garage records were played, most now totally forgotten. Did a CD of Mod sounds for friends recently that had a few on it.
Petula Clark's pop hits of the mid sixties and onwards are fine pop records, why are people snobbish about them? I'm sure most of us like other styles of music apart from soul.
I used to go to a club called the Why Not, later called Die Spinner, and they often played French pop records, ballads, nice to dance to your girlfriend with, followed on from the popularity of Francoise Hardy. She was very attractive, as well as a good singer. And they played good soul records too.