WMSO (1240 AM) is an urban adult contemporary formatted broadcast radio station licensed to Southaven, Mississippi, serving Metro Memphis.
[2] On May 13, 2019, WMSO changed its format from southern gospel to urban oldies, branded as "Memphis Soul 104.1".
[3] On June 8, 2020, WMSO changed its format from urban oldies to classic hip hop, branded as "Bumpin 104.1".
[4] On November 13, 2023, WMSO changed its format from urban adult contemporary and gospel to Regional Mexican, branded as "El Gallo 104.1".
[5] On June 1, 2024, WMSO changed its format from Regional Mexican to urban adult contemporary, branded as "Power 104.1 The Source".