Actor Leonardo DiCaprio grabbed eyeballs when he sported a full beard and a slick hairstyle as he accepted the Clinton Global Citizen Award for his environmental work. Leonardo's look is a fine combination of classy and old school. This look is extremely simple and practical. The actor kept it a bit quirky by sporting a bun. If you have long hair and are heading for an event this is how you can ape Leo's look. Hair length For this look there is not too much of an effort required as long as you have at least mid-length to long hair.