PREVIEW: PRETTY LITTLE LIARS ("This Is a Dark Ride") With Guest Star Adam Lambert

The PRETTY LITTLE LIARS special Halloween episode, "This Is a Dark Ride," airs on Tuesday, October 23 at 8 p.m. ET/PT on ABC Family.

Aria, Emily, Hanna and Spencer are looking forward to some good old Halloween fun now that the traumatic events with Nate are behind them. But once aboard the Rosewood Ghost Train, the girls are in for much more than just some childish trick or treats.

With “A” running amuck and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party.

Watch a sneak peek below:



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