These events are brought up during "Regional Holiday Music", which also reveals the true reason behind the crash. Rad's "Oh look...Kings of Leon!" line as a way to distract the audience when he flees after admitting he murdered the previous singing club was also Glee-based: Ryan Murphy asked Kings of Leon if he could use one of their songs on his show because it had an anti-bullying message, but the band told him no. Murphy then publicly criticized them and this led to a short but nasty spat before everyone moved on. Following the footsteps of season 2's "Abed's Uncontrollable Christmas", Abed spends the episode trying to get the group to embrace the holiday spirit during Christmas. "Regional Holiday Music" is a satire-at-large of the television series "Glee". The audio transitions for this episode mimic the a cappella audio transitions featured in "Glee", whilst the glee club instructor Cory Radison ("Mr. Rad") shares many similarities to Will Schuester ("Mr. Schue"). The episode also makes reference to the concept of "Regionals", which would be confusing to people who haven't watched the show. Unlike most songs on "Glee", the music on "Regional Holiday Music" is entirely original. Jeff remarks in a scene that not liking the glee club does not make the group bullies, in reference to "Glee" creator Ryan Murphy's criticism of musicians who don't want their music on the show. When Mr. Rad reveals that he killed previous glee club members, he shouts "Look, Kings of Leon!" to distract the audience before escaping. Kings of Leon had previously clashed with Murphy over permission to use their songs on "Glee". The song "Glee" speaks about the namesake series' tendency to sing their feelings instead of "making a face." While performing "Baby Boomer Santa", Troy and Abed recreate musical styles from the 1940s to 1980s, including performing "Dancing in the Dark" and Troy impersonating Bob Dylan. The episode continues the show's recurring spoof of the British television series "Doctor Who" through "Inspector Spacetime", while also making a nod to the infamous 1978 "Star Wars Holiday Special". While the group discusses their Christmas plans, Annie reveals she will spend time with her bubbe (the Yiddish word for grandmother), which Troy confuses for "boobie" (breast). The scene where Britta discovers that Jeff has been turned is a spoof of the ending of the 1978 remake of "Invasion of the Body Snatchers".