Prankster convinces grandmother that 'Frozen' plot happened in his life

Just when we thought everyone on the planet knew who Elsa from "Frozen" was, this grandmother proves us wrong, thanks to a hilarious prank by her grandson.

Kevin Droniak was issued a challenge by fellow prankster Jimmy Kimmel: Convince his grandmother that the plot of "Frozen" happened in Kevin's life. We can't say Kevin pulls it off without a hitch, but the results are pretty hilarious, nonetheless.

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Kevin, who is 17, has been making videos of his conversations with his grandmother for two years. He loves to take advantage of his grandmother's lack of pop culture knowledge.

Kevin's grandmother just watched their videos for the first time in August and she was a great sport about it. That might have been why she was on to his prank, but she doesn't seem to know where the story comes from.

Watch Kevin's full video, including his grandmother's reaction to being on TV, on his YouTube channel.