Some of them are good singers and some of them are terrible, with the players and panellists having to figure out who fits into what category. The twist is that everyone will be lip-syncing along to vocals that may or may not be their own, while bad singers will be able to lie about their own singing experience. If the players want to win £10,000, they'll have to whittle down all the singers and make sure their final pick, who gets to perform with a different popstar every week, is an actually good singer. If their final choice is a bad singer, that person gets to steal all the money.