Gwyneth Paltrow met her future husband, show co-runner Brad Falchuk as a result of guest-starring..
Shortly after the episode aired, Dina Lohan publicly attacked the show and Gwyneth Paltrow for the joke made about her daughter Lindsay.
In the pre-title teaser, the triumphant music accompanying Sue's announcement that she is the new headmaster, is, fittingly, from Antonín Dvorák's "From the New World", popularly known as the New World Symphony.
In this season, episode 4: Duets, Kurt (Chris Colfer) suggests singing "Make 'Em Laugh" referencing Singing in the Rain (1952). In this episode, Will (Matthew Morrison) performs the duet with Mike (Harry Shum Jr.).