This page contains trivia for "HappyHolograms". Remember, trivia must be factual, provable, and it is always best to cite your source for not-so-obvious trivia. If you would like to dispute a trivia point, please discuss it in the article comments.
The police making racist jokes and bullying minorities references the Ferguson, Missouri case where a black man named Michael Brown was shot and killed by a police officer. The police also tell each other to choke and shoot the black men also referring to the shooting of Michael Brown and the choking death of Eric Garner.
The hologram of Kurt Cobain loads a shotgun and briefly holds it up to his mouth, which refers to how the real Kurt Cobain committed suicide.
Kenny does not appear in this episode. Thus making this another season where he doesn't die.
Angelina Jolie appears in the trailer for "The Washington Redskins' Go Fuck Yourself Holiday Special" where she scratches herself between her legs. This is a reference to the Season Eleven episode "Lice Capades".