Megan Fox rocked sexy silver locks, more celeb hair transformations of 2021

Wonderwall.com is taking a look back at the year's biggest celeb hair transformations, starting with this switch-up... Megan Fox traded her brunette tresses for this striking silver shade, which she showed off on Instagram on Oct. 8. The star made it clear that her new 'do (a wig!) is for her role in the upcoming film "Johnny & Clyde." The actress captioned this sultry selfie, "This is what the devil's daughter looks like. #JohnnyAndClyde Coming Spring 2022." She'll be starring as a crime boss in the flick.

Keep reading to see more of the year's biggest celebrity hair transformations...