01/13/2011 (08:30PM - 09:00PM) (Thursday) : TROY GETS MORE THAN HE BARGAINED FOR WHEN THE STUDY GROUP GATHERS TO CELEBRATE HIS BIRTHDAY � When the study group convenes to celebrate Troy�s (Donald Glover) birthday, they realize he is actually turning 21 and decide to hit the bars! While Jeff (Joel McHale) and Britta (Gillian Jacobs) ingest a few too many cocktails and get silly, Shirley (Yvette Nicole Brown) gets busy pulling down incriminating photos of herself that are posted at the bar. Annie (Alison Brie) embraces the identify on her fake ID, while Abed (Danny Pudi) delves into conversation with a fellow sci-fi nerd. When Senor Chang (Ken Jeong) finds the fresh remains of a birthday cake in the study room, he vows to find the group. Chevy Chase also stars.