Pretty Little Liars - The Liars Watch Adam Lambert Perform “Cuckoo“ - “This Is A Dark Ride“ (3x13)

As they are walking down the train, Hanna complains to the others that there’s no point in dressing up if no one can see you. The lights dim and Adam Lambert begins to perform a song, surprising everyone, and they all start to dance. The next scene shows a nurse checking on Mona to make sure she’s in bed; but actually it’s the mask Mona made, implying she may be on the train. With everyone dancing, a person in a white mask and black hood with cape begins to touch Hanna, and Hanna tells him/her to leave her alone. In this special Halloween episode, Aria, Emily, Hanna and Spencer are looking forward to some good 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 tricks or treats. With “A“ running amuck and unexpected party-goers popping up at every turn, this Halloween event becomes one killer party. Plus, musical guest star Adam Lambert performs his songs “Tres