Fall Out Boy is an American rock band from Wilmette, Illinois. Their genre is often classified as emo, which is a three-letter acronym for 'emotional hardcore'. Emo is a subgenre of punk rock that originated in the mid-1980s and is characterized by its confessional lyrics and melodic instrumentation. It has been described as a combination of punk rock and pop music, and is often associated with feelings of sadness, loneliness, and despair.