Today is extra special for Louis Tomlinson: it's his 24th birthday! The One Direction singer has changed a lot over the last few years but one thing we can always count on is his hair. Tommo has always made sure his brown tresses are on point and styled to perfection and he hasn't been afraid to try out different 'dos along the way.
Click through the gallery to relive all of Louis' best hairstyles. Don't forget to leave him a birthday message in the comments section below too!