Onepiece, One Direction
Louis Tomlinson has long been a Onepiece fan since he and the One Direction boys all wore their Onepieces during the X Factor finals at the end of last year.
Since then, Louis has been seen sporting a few different designs, and One Direction fans are trying to keep up. The One Direction boys are due to release their first single in the UK charts soon. They've had an amazing year - this time last year, the boys didn't know each other! Happy Birthday, One Direction!
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Thanks to Elin Färlén and Li Säfvenberg for some of these pictures.