Fifteen previous contestants and three newcomers compete in challenges all around the world. However, this season, when Chris rings a bell, the contestants must break into song. If they don't, they are automatically eliminated. By the rules, contestants must sing once in each episode, and Chris may call a "reprise" of the song. Contestants safe from elimination are awarded barf bags full of airline-issued peanuts, continuing the tradition of edible safety items. When a contestant is eliminated, they must take the Drop of Shame voluntarily or someone will have to force them off of the plane.