The regional preliminaries are followed by a weekly broadcast knockout competition held in Changsha, Hunan province. Viewers call in to vote for their favourite singers, and the weakest two—as voted by the judges and the audience's weekly SMS— face-off subsequently in a PK, short for Player Kill. The term is derived from kill-or-be-killed multiplayer online games. The singer with the fewest votes is then eliminated. Unlike Pop Idol, the last event is contested between the final three, rather than the final two contestants.