The Week in Celeb Twitpics (PHOTOS)

Halloween Week had the Twittersphere buzzing with photos of our favorite pop culture phenomenons. From Justin Bieber to Taylor Lautner to the beloved Glee cast, we’ve got this week’s best celeb twit pics for you!

Can you guess which set the Biebs took a photo of himself on? Who’s back on Glee and which cast member is behind that Halloween mask? Make your guesses and click through the gallery to find out if you’re correct!

And if that wasn’t enough, Celebuzz gathered photos of this year’s best celeb Halloween costumes. Check them out below!

Who do you think had the best costume this year? Sound off in the comments!