3 :01x03 - Acafellas
First aired: Sep/16/2009
Writer: Ryan Murphy
Director: John Scott
Guest star: Debra Monk (Will's Mother), John Lloyd Young (Henri St. Pierre), Marie Caldare (Mrs. Holloway), Maxine English (Mrs. Robinson), Shelby Rabara (Shoshandra), Vivian Nixon (Andrea), Gregory Hinton (Flex the Bodyguard), Brooke Newton (Leggy Blonde), Clint Culp (Teamster), Heather Morris (Brittany), Victor Garber (Will's Father), Josh Groban (Himself), Stephen Tobolowsky (Sandy Ryerson), Naya Rivera (Santana Lopez), Iqbal Theba (Principal Figgins), Patrick Gallagher (Ken Tanaka), Whitby Hertford (Dakota Stanley), Kent Avenido (Howard Bamboo)
Will forms the Acafellas, an all-male a capella group, but spends more time building his own confidence than he spends with the Glee Club. With Will away, the club hires a choreographer to help coach them. Meanwhile, Mercedes falls for a boy at school, but he doesn't feel the same way back; and the Acafellas perform for the P.T.A. and get a visit backstage from Josh Groban.