19. Louis Tomlinson – 24
Louis Tomlinson is the first man to grace this list, and it is not because he really looks all that old. But there is no denying that he looks much older than 24. Since his band One Direction took off, he has been known to work constantly and never take a break. It seems that this fast pace and hard work have taken their toll on his looks. The good thing is that even though he looks older, he is still incredibly handsome.