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Pretty Little Liars

Pretty Little Liars Season 4: Is Ashley Benson Wearing a Wig? (PHOTO)

Ashley Benson (Hanna) just made a drastic hair change, going from a bright blondie to a sultry brunette. But now, in a recent photo, Ash is sun-kissed again. Let the investigation begin.

Ashley’s Pretty Little Liars co-star Shay Mitchell showed off this photo of her and a very blond Ash on Instagram yesterday and wrote, "Sleepy girls." PLL Season 4 filming starts in a few weeks, so will Ashley be rocking a wig during the upcoming season? After all, her center part appears to come down farther than usual, and the fact that she was seen with dark locks just days ago makes us think her golden hair in this pic is fake.

If that's true, why would Ashley go brunette if she's only going to hide it for Pretty Little Liars? Your guess is as good as ours, but maybe Ashley is being considered for a movie or TV role where she needs to have brown hair (Anastasia Steele, perhaps?). Time — and around-the-clock speculations — will tell!

Catch the next episode of Pretty Little Liars on Tuesday, March 5, 2013 at 8 p.m. ET/PT on ABC Family.