On October 23rd, the little liars are back on T.V. with a special Halloween episode called "This Is a Dark Ride."

If you saw the crazy season finale a little while ago (you can read the summary HERE if you forgot the details), you'll know just how much trouble the Liars are in this time.

Adam Lambert is guest starring in this episode as a singer at the Halloween party that "A" finds a way to ruin.

Also, it's just been announced that Gregg Sulkin got invited back to appear in a fourth episode of Pretty Little Liars as Ezra's younger brother.

Check out the photos from the Halloween episode below!

Sources: ABC Family, Just Jared Jr., Disney Dreaming