A band that Gruntilda, the main antagonist of Banjo-Kazooie, sings vocals for. The band is mentioned in one of the trivia questions during the "Grunty's Furnace Fun" section. The band can have one of three different names, selected at random when you start a new save file. It can be either "Grunty and the Monster Mob," "Grunty and the Broomstick Boys," or "Grunty and the Cauldron Crew". According to Grunty's sister Brentilda, their music is terrible.