7.30pm Wednesday December 28 on Ten
GWYNETH PALTROW guest stars in this episode !
When Mr. Schuster is out sick, quirky substitute teacher Holly Holiday (Paltrow) becomes the new faculty advisor of the glee club. Sue takes over as principal of McKinley in Figgin’s absence and immediately starts to implement new rules and regulations. Off-campus, Terri returns and Kurt’s relationship with Blaine causes tension between him and Mercedes.