The master of ceremonies, or MC, is the voice of the pow wow. It is his job to keep the singers, dancers, and public informed as to what is happening. The MC sets the schedule of events, and maintains the "drum rotation", or order of when each drum group gets to sing. The MC is also responsible for filling any dead air time that may occur during the pow wow, often with jokes. The MC often runs any raffles or other contests that may happen during the pow wow.