She's baaaack! Pretty Little Liars returns with ALL NEW episodes on Tuesday, January 8 -- just in time for Mona to make her return to Rosewood High. Is she better now? How will our Liars react? Check out the video below for a sneak peek from Janel Parrish (Mona)!

Inside ABC Family: Mona's Back

Plus, click here for some more "A"-mazing spoilers from executive producer Oliver Goldstick.

Watch the winter premiere of Pretty Little Liars next Tuesday at 8/7c -- followed by the winter premiere of The Lying Game.