Channel your inner Sophia Loren.

A blazer can make you feel sophisticated andboardroom-ready, even if you’re tossing it overpajama shorts.

And kerchiefs capture the essence of Euro summer, whether you’re jet-setting off to Nice or not.

Devon Lee Carlson wearing a kerchief

@devonleecarlson/Instagram

Of course, the hair scarf isnt anything newits been a fashion staple for over a century.

Ahead, everything to know about the trend and how were styling it through the warmer season.

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The Trend

Kerchiefs can be dated all the way back to Medieval Europe.

Kacey Musgraves wearing a kerchief

NBC via Getty Images

In videos, users attempt to re-create the trend, wearing the scarf like Bieber over a baseball cap.

The look is also a favorite of Rihanna, who Bieber says she was referencing for her festival look.

model wearing a heasscarf

@sandyliang/Instagram

Audrey Hepburn wearing the hair scarf.

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Hunter Schafer wearing a white hair kerchief at Cannes.

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Justine Skye wearing a blue hair kerchief.

@justineskye/Instagram

Devon Lee Carlson wearing a bandana

@devonleecarlson/Instagram