Excellent summer hair is all about ease. Spending too much time on styling is a no-no when you could be making the most of longer, lighter days and the heat—which is why the undone bun just works.

Add Yahoo as a preferred source to see more of our stories on Google. @justinemarjan/Instagram Let's face it: Once the temperature steadily hits 80 degrees, minimizing sweat is the name of the game.

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We all prolong our hair wash for more than we might like because let's face it, washing your hair is a chore, so if we can risk it another 24 hours, we will. To get you through those dirty hair days, ...

Bieber and Kravtiz had traded their boar bristles and hair gels for something a little more undone. Stray wisps framed their faces and the overall look had a Brigitte Bardot-esque nonchalance. The ...