Please note the revised episode description for the upcoming all-new episode of GLEE airing Tuesday, Dec. 6 (8:00-9:00 PM ET/PT):

TUESDAY, DECEMBER 6

--"GLEE" - (8:00-9:00 PM ET/PT) CC-HDTV 720p-Dolby Digital 5.1

MCKINLEY HIGH HOSTS SECTIONALS ON AN ALL-NEW "GLEE" TUESDAY, DECEMBER 6, ON FOX

GUEST STAR CHORD OVERSTREET RETURNS TO THE GLEE CLUB

In an attempt to recruit a few more members, Finn tracks down former teammate Sam Evans (Chord Overstreet) and convinces him to come back to the glee club. Tina comes to the defense of Mike and encourages him to pursue his dream while McKinley prepares to host the big sectionals performance in the all-new "Hold On To Sixteen" episode of GLEE airing Tuesday, Dec. 6 (8:00-9:00 PM ET/PT) on FOX. (GLE-308) (TV-14 D, L, S)

Cast: Matthew Morrison as Will Schuester; Jane Lynch as Sue Sylvester; Lea Michele as Rachel Berry; Cory Monteith as Finn Hudson; Jayma Mays as Emma Pillsbury; Dianna Agron as Quinn; Chris Colfer as Kurt; Kevin McHale as Artie; Amber Riley as Mercedes; Mark Salling as Puck; Jenna Ushkowitz as Tina; Naya Rivera as Santana Lopez; Heather Morris as Brittany; Harry Shum as Mike Chang and Darren Criss as Blaine Anderson.

Guest Cast: Chord Overstreet as Sam Evans; Keong Sim as Mike Chang, Sr.; Idina Menzel as Shelby Corcoran; Damian McGinty as Rory Flannagan; Vanessa Legies as Sugar; Grant Gustin as Sebastian; John Schneider as Dwight Evans; Tanya Clarke as Mary Evan.