The following information was taken from the Kappa Kappa Tau page on the Scream Queens Wiki.
Kappa Kappa Tau, or just simply known as Kappa or KKT, is the most demanded sorority of Wallace University featured in the first season of Scream Queens, introduced in the Pilot. It is led by Chanel Oberlin and Zayday Williams and its members appear to be targeted by the Red Devil.