Boy bands are quintessential to the human race; other people may disagree with that sentiment, but there's no denying the power that they have over millions of people. Ever since the emergence of the Beatles, the world's first official boy band, these special breeds of individuals have proliferated mainstream media to titillate hormonal teenagers. From Backstreet Boys to One Direction, boy bands enjoy screaming fans mobbing their concerts and hotel buildings for a reason.

The look that these boy band members showcase is one of the key factors why girls -- and some boys -- go absolutely mental for them. From preppy school boy looks to urban punk get-ups, several stylings that popular boy bands have come to showcase throughout the years make a lasting impact.