Quarteto em Cy was a Brazilian girl group originally composed of four sisters hailing from Ibirataia, a town located in the Brazilian state of Bahia: Cybele, Cylene, Cynara and Cyva – their real first names.
From Wikipedia (https://en.wikipedia.org/wiki/Quarteto_em_Cy) under Creative Commons Attribution CC-BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0/legalcode)