A Look Back at Newly Blonde Leighton Meester's Blair Waldorf Hair (and Headbands)

Spotted at Tribeca's Nexxus Salon, hair in foils: Leighton Meester.

Yup, ICYMI, one of the most iconic millennial brunettes, Blair Waldorf — er, Leighton — just went platinum blonde. As the "Heartstrings" singer told POPSUGAR, she chose to switch things up because she wants, "to try something completely drastic and different, and I thought this is the right moment to do it. You know when you just get it in your mind and you have to do it?"

Girlfriend looks fabulous, but we couldn't help but get a little nostalgic for her OG color. That's why we took the time to make this very important ode to Blair's hair.

Ahead, find the moments the Queen Bee of the Upper East Side gave us major hair (and headband) envy.

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Long before ribbons became the it accessory of the red carpet, Blair wore the style quite frequently. Trendsetting!

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The pink cloche hat serves two purposes: throwing us back to the year 2007, and drawing our attention into Blair's chestnut ringlets.

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Blair Waldorf or 1940s melodrama star? The difference is nearly indecipherable, as Blair oozed vintage glamour in this romantic updo.

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The headband returns! While the back of my ears ache from the thought of wearing one of these skinny things, it's OK because Blair rocks the look, which enhances the drama of her deep side part and long waves.

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Spotted: Blair looking fierce in a rhinestone headband that's not as dated as Serena's old Blackberry phone.

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Wet hair, we really care! Blair sported the now-trendy style way before it was popular.

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Catfights aren't the most feminist-friendly cinematic trope, but dang if this one doesn't give us a killer view of Blair's brown strands.

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We'll always have pompoms: Leighton's bone-straight hair perfectly compliments her voluminous cap.

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She opted to pair her blue beret with red-tinted hair, and we give this French-girl style a big "oui oui."

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We'll leave you with this: classic Blair, classic hair.