They are one of Britain’s hugest boy bands, hot heartthrobs who have girls screaming their name from all over the globe – but where would they be without their hair? Male hair extensions have increased in popularity in recent years, and these styles from Harry Styles, Louis Tomlinson and Zayn Malik are all easily replicable with a little Hair Development magic. Being hair icons as well as international stars, they have had a fair few hair developments of their own. Here, we […]