The once squeaky clean boy band have spent almost as much time in tattoo parlours as they have on stage in recent years. With the sole exception of Niall Horan, One Direction have devoted hours to getting themselves inked from head to toe since hitting 18. The first to hit the ink was Harry Styles, who had an outline of a star tattooed on his inner bicep as soon as he reached 18 - and his band mates were quick to follow suit. Scroll down for video Revelation: One Direction stars Harry, Louis, Zayn and Liam have revealed what their tattoos mean
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One Direction have come clean about the meanings of their many tattoos
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Zayn claims that the reason for his 'Zap!' tattoo is simpler than imagined
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Louis says that there is very little thought behind any of his etchings
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Harry says he takes inspiration from 'cool people' he meets
Unusual: @placeholder' earlier tattoos (left) were more basic than his famous bird on his forearm