Factual error: They sing Katy Perry's "Roar" before the song was even released. This episode is set in Spring 2013 and the song was released in August.
Glee (2009)
1 factual error in season 5 - chronological order
Continuity mistake: In "Wheels," when Artie is singing 'Dancing By Myself' and doing tricks in his wheelchair, the wheels on the back of the chair that prevent him from falling backwards disappear and reappear, depending on whether or not he is performing a trick.
More quotes from Glee
Trivia: The show is based on creator Ian Brennan's experience in show choir at Prospect High School in Illinois.
Question: Who is the narrator for the previous episode montages?
Answer: According to IMDb.com, Ian Brennan, one of the "Glee" writers and producers, is listed as the uncredited narrator voice.
Michael Albert