Categorize these bands as either 'rock', 'pop', 'metal' or 'indie'. Metallica, Queen, One direction, Korn, Coldplay, Arcade fire, backstreet boys
metal: Metallica, Korn
rock: Queen, Coldplay
pop: One direction, backstreet boys
indie: Arcade fire
<START_INST>Categorize these bands as either 'rock', 'pop', 'metal' or 'indie'. Metallica, Queen, One direction, Korn, Coldplay, Arcade fire, backstreet boys<END_INST><START_CTX><END_CTX><START_A>metal: Metallica, Korn
rock: Queen, Coldplay
pop: One direction, backstreet boys
indie: Arcade fire<END_A>