Today marks a special day for Zac Efron: it's his 27th birthday! It seems like just yesterday we saw him star in High School Musical. Not only did his acting career skyrocket, his sense of style has also taken off. From his skinny jeans to his fashion forward dress suits, Zac's style evolution has transformed over the years, making him one of today's most stylish male stars.
Click through the gallery to see Zac's style transform throughout the years. Then, wish him a special happy birthday in the comments section below!