Tonight, Pretty Little Liars ends its third season—and reveals another member of the "A Team." Spencer (Troian Bellisario) seems to gone over to the dark side, and Aria (Lucy Hale), Hannah (Ashley Benson), and Emily (Shay Mitchell) are reeling from the possibility. Though, whatever happens tonight, we do know that each Little Liar's signature look, from Aria's punk-rock duds to Emily's increasingly feminine style, will be on full display, thanks to the dedication of costume designer Mandi Line, who has kept each girl firmly in character throughout three seasons. We asked Line what we could expect from the season finale—fashion-wise, no spoilers here!—and she did us one better, giving us her all-time favorite looks for each of the girls. Click through to see them all before the episode airs at 8/7c on ABC Family. And make sure to check back tomorrow; Mandi is giving us the scoop on just what went into picking the mysterious Red Coat's scarlet trench. Spooky!