Here at Cosmo, there are few things we love more than an unexpected celebrity hair transformation—and wow, 2025 was full of them. From Pamela Anderson’s jaw-dropping ginger shag to Sofia Richie's bob ...

Billie Eilish ditched her dark hair for a shorter, golden 'do five years after going platinum blonde for her 2021 Happier Than Ever album release.

Hair today, gone tomorrow — literally. The following 20 celebs have had hair transformations like no other. Check them out. Ariana Grande sported that classic bright red hair for years as part of her ...

Brandon Sklenar turned heads as he stepped onto the MTV VMAs red carpet Sept. 27 with a blonde hair transformation.