It's been another big year for One Direction – and a pretty impressive year of hair, as well. Harry Styles and Zayn Malik literally went to great lengths with their manes, as Liam Payne, Louis Tomlinson and Niall Horan tried on a few different styles throughout the course of 2014.
We've rounded up a review of the 1D guys' hairstyles, from January through December 2014, so you can see the hairy journey they've traveled.
Who do you think has changed the most over the year? Harry's hair has been on the steady growth path, but it looks like Zayn might have caught up with him as well, as evidenced by the man bun. Who has worn your fave hair style this year?