You Got The Love was originally recorded by Candi Staton for a (sadly lost) diet video:
Someone got hold of an a capella version and the remixers took over.
There are loads of versions, but the most successful was this one, the Now Voyager mix:
Bringing us up to date, here is the Florence version:
And then there is The XX remix of the Florence version:
As the Guardian said, this is the best remix of a cover version of a refix of a mash-up of an a cappella of a song originally written for a diet video.