'Pretty Little Liars' Haunt Halloween Special Premiere

Cemeteries aren't exactly new territory for our favorite "Pretty Little Liars," but at least last night's visit to the land of gravestones and all that's ooky and spooky was full of treats—not tricks.

The cast of the hit ABC Family series congregated at the Hollywood Forever Cemetery in Los Angeles Monday for the premiere of their Halloween special, "This Is a Dark Ride," and it seems the dress code could be best described as "autumnal casual." Stars like Lucy Hale, Brant Daugherty and Sasha Pieterse broke out their boots and dark denim for the walk down the black carpet, though cast mates Lindsey Shaw and Tammin Sursok did opt for slightly more frill with their respective dresses

The upcoming episode, which airs Tuesday, October 23, is set on a train and features a guest appearance by former "American Idol" contestant Adam Lambert, who will reportedly perform a pair of songs.

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Watch a preview of the episode!

What do you think of the "Pretty Little Liars"' look on the carpet? Will you be tuning into the Halloween special? Spill it all in the comments and on Twitter!