many times people have stated that Florence was not on MY WORLD IS EMPTY but after hearing the remix a year or so ago from the motown remix cd, you can hear Flo vocals in the background in this version. it seems her vocals were mixed in the background for the single version. also on the REFLECTIONS dvd ,you can hear Flo on the version that appears on it.
it could be the same on Reflections and HURRY LOVE so until i hear it for myself ,..its the Supremes.