It's an amazing song, but not all great songs are the best single choices, especially from Confessions.
All the songs should be together. It's hard to get the full feel of any of the songs on Confessions on a Dance Floor without the full-album experience. I feel it's best to hear each song as it fits in with the others on the album, rather than just playing a single one over and over again.
FKA Twigs LP1 | Jhené Aiko Souled Out | Luke James Luke James | PARTYNEXTDOOR TWO | Elle Varner 4 Letter Word | Keyshia Cole Point of No Return | Kimbra The Golden Echo | BANKS Goddess | Tinashe Aquarius | Drake Views From The 6 | SBTRKT Wonder Where We Land | Jill Scott TBA | Azealia Banks Broke With Expensive Taste | Imogen Heap Sparks | iamamiwhoami Blue | Jessie Ware Tough Love