I have had a copy of "Keep on Loving Me" on the purple Soul label for the best part of 40 years and only recently discovered that my B side, whilst correctly labelled with "Fight Fire With Fire" is actually "Purple Rain Drops" by Stevie Wonder, which was of course the B side of "Uptight."  I can't imagine this would have been designed as an attractive B side for a bootleg!  Anyone got any ideas?

I've had few purple vinyl copies over the years and the flip always played 'fight fire with fire'. Yours is most likely a mispress as one of the first run in the press... then corrected... While browsing I found this nice RARE styrene West Coast press ! WOW, I've never seen that before...