One Direction's Major Style Changes Over the Past 4 Years

 We can't believe how much the guys have grown up in the years since their days on X Factor, and their maturity even reflects in their fashions. In the past four years, Harry Styles and Louis Tomlinson's hairstyles have grown into long manes, Liam Payne has gone from wearing polo shirts to rocking dapper suit jackets, Niall Horan had his braces put on and removed, and Zayn Malik got more tattoos than we can count!

Niall Horan

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Louis Tomlinson

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Harry Styles

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Liam Payne

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Zayn Malik

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