Credit: Twitter

Halloween is a fairly simple holiday. All it really needs is one pair of black pumps, one moving train and one … glampire? At least, that’s what Halloween in Rosewood is shaping up to be in Pretty Little Liars Season 3, Episode 13: “This Is a Dark Ride.”

We already know that Adam Lambert is performing on PLL’s first episode back after the summer finale, but now we get a first look at Adam’s wardrobe. Adam recently tweeted a photo of himself in his trailer in what appears to be an old-fashioned vampire costume with dark eye makeup to match. And did you check out those earrings? Those things could be lethal. But unless Adam is an honorary member of the “A”-team (which we seriously doubt), we’re betting they’re just for decoration.

So now that we’ve got one costume figured out, any ideas what the Liars will be for Halloween? What about Spencer (Troian Bellisario) and Toby's (Keegan Allen) matching costumes?

And between the creepy ending and Adam’s eyeliner, just how dark is this episode going to get?

Catch an all-new episode of PLL on Tuesday, August 14 at 8 p.m. ET/PT on ABC Family.

Source: Twitter

Samantha Highfill is a contributing writer to Wetpaint Entertainment. Follow her on Twitter at @samhighfill.

Want more Pretty Little Liars? Like us on Facebook and Follow us on Twitter and Tumblr.