The guys of One Direction have gotten to know each other pretty well over the many years they were together as a band. And even though they're currently on a break, they still value the friendships they've built. They've even revealed some rather interesting secrets about each other and just recently while Liam Payne was doing a Twitter Q & A with fans, he was asked about Niall Horan's famous hat.
Although Liam doesn't know the exact details of this beloved hat and how exactly Nialler is keeping it so fresh,he promises to find out and let the world in on this secret. Leave it to Liam to share this deep, dark wisdom with us all one day. We'll be waiting.
In honor of Liam's promise to share this revelation, click through the gallery to uncover the best secrets the guys of One Direction have shared about each other over the years and then drop a comments below telling us which of these surprised you the most!