Katherine McNamara is the latest star to go pink!

The 24-year-old Arrow actress showed off the new hue of her locks on social media this afternoon, just a day before Thanksgiving.

PHOTOS: Check out the latest pics of Katherine McNamara

“#OnWednesdaysWeWearPink – Pink hair that is…👩🏻‍🎤💕,” Katherine captioned the shot, referencing the famous quote from Mean Girls.

Katherine follows Justin Bieber, Dove Cameron, and singer Charlotte Lawrence.