Centered around the worship of the Cromulons, Headism began soon after the first Cromulon appeared above Earth and caused drastic weather changes. Following the initial appearance, many people gather at the local church, including Jerry, Beth, and Summer, as well as Principal Gene Vagina. At this church, Principal Vagina declares, "The old gods are dead, fuck all previously existing religions. All hail the one true god: the giant head in the sky." He then exits the church to pray in the street.