At the request of Kurt Hummel ( Chris Colfer ) , club lessons are instead covered by substitute teacher Holly Holliday ( Gwyneth Paltrow ) , whose unconventional methods include discussing Lindsay Lohan 's rehabilitation in Spanish , singing `` Conjunction Junction '' to her English class , and roleplaying as a bipolar Mary Todd Lincoln for the History class .
At the request of Kurt Hummel ( Chris Colfer ) , club lessons are taught by substitute teacher Holly Holliday ( Gwyneth Paltrow ) .