Celebrity Twitter Pictures Roundup | Dec. 6, 2012

What did people do before Instagram and Twitter? How did they know, for example, that someone on 90210 has a shirt-tearing scene coming up? How did fans know that Ken Marino would be guest-starring on Whitney or that the stars of Teen Wolf have cookies with their faces on them? Would fans just have to imagine what goes on behind the scenes of movies and TV? Lucky for us, we do have these modern conveniences, and this week we're bringing you the cream of the crop of insider pictures shared by the stars themselves. Check them out!

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