Shay Mitchell (Emily), aka one of the sexiest brunette bombshells we know, has gone over to the light side.

The Pretty Little Liars actress took to Instagram yesterday (July 16), flaunting her new sun-kissed waves. Along with the blond photo, Shay wrote, "hair change! @itsashbenzo goes darker and I go lighter! Thanks @georgepapanikolas for my summa hair!!! #switchingitup #hairdid."

That's right, PLL lovers. Shay and her BFF Ashley are doing a little hair color swap, but before you go calling all of your pretty little besties, it looks like Ash went for a less dramatic change. She posted a photo on Instagram flaunting her new, subtly brown 'do, but we still see some hints of highlights. Phew!

What do you think of Shay's bright new look? Weigh in below!

Catch the next episode of Pretty Little Liars on Tuesday, July 23, 2013 at 8 p.m. ET/PT onĀ ABC Family.

Credit: Shay Mitchell's Instagram Photo: Shay Mitchell's Blond Hair