QUICK HIT: Guess Who’s Joining The Cast Of Glee? (Hint: It’s Not Gwyneth Paltrow)

The Gleeks were out in force last night on Facebook, unanimously praising the Gwyneth Paltrow episode with exclamation-points and raves. There’s so much buzz about the ep, in fact, that it makes the last buzzworthy Glee moment — an a cappella version of “Teenage Dream” — seem almost like… a dream (perhaps a teenage one). Well, don’t forget about it too quickly. Big news from the casting desk. A new cast member’s been signed through the rest of the season. Click here to find out who…