One of the best scenes in Adventure Time is when Ice King goes to Marceline's house to jam. It turns out the "lyrics" Ice King wrote were actually messages to Marceline the little girl that he wrote hundreds of years ago, before the crown turned Simon into the Ice King.
Woahwoahwoah... That episode was absolutely amazing and was the first time it became clear to me I was no longer watching just another kids show, but finding out what you just said before actually seeing it for the first time would be like finding out early that you-know-who was you-know-who's father. Please consider putting a [MEGA SPOILERS] tag at the beginning of your comment.
One of the best scenes in Adventure Time is when Ice King goes to Marceline's house to jam. It turns out the "lyrics" Ice King wrote were actually messages to Marceline the little girl that he wrote hundreds of years ago, before the crown turned Simon into the Ice King.
https://www.youtube.com/watch?v=vknDUJ3MM1M