I don't know what exactly inspired this video of the Frozen characters performing the iconic choreography from Michael Jackson's 'Thriller,' but at this point I should know better than to question the internet gods.
From the undead facial expression to the various angles and pans, this video is spot on. Trust me, I watched them side by side. It's amazing. Here's the original in case you have any doubts (okay, I know you just want to watch 'Thriller'). Jump to 8:28!