That whole thing with Mona Lisa was the idea that there is this character. For us, you look at the painting, and you can’t tell what this person is thinking. Not showing too much emotion, there’s this Mona Lisa smile masking what’s going on in that person’s head. The song is about a battle in yourself … an inner struggle in oneself. The duality in nature, where you see yourself as a bad person, and the good person trying to correct your bad habits. That’s what it was about. We thought that would be an easy way to describe how we were masking our own emotions and trying to figure out how we can solve the bad choices we make.
-Brendon Urie, lead vocalist of Panic! at the Disco