Premise: "Chic Mystique" is a song by American disco and R&B act Chic. Written and produced by guitarist Nile Rodgers, it was the second single from the album "Chic-Ism" and was a number-one hit on the "Billboard" Hot Dance Club Play in the U.S. and achieved a moderate success in many European countries where it was only a top 25 hit.
Hypothesis: Chic did not have any instrumentalists among its members