Claim: Brendon Urie born 1987 said that idea of "The Ballad of Mona Lisa" was from four years ago, it was sitting on a laptop but ended up being good in the whole process.
Evidence: "A few of the ideas — like "The Ballad of Mona Lisa", specifically — was from an idea I had probably four years ago, before we even started touring on Pretty. Odd., and it was just sitting in my laptop collecting figurative dust on my hard drive, not really doing much," said Urie. "That ended up being a really good intro to the whole process." "The Ballad of Mona Lisa", written by lead singer Brendon Urie, was one of the first tracks composed for the band's third album, Vices & Virtues. Brendon Boyd Urie
(1987-04-12) April 12, 1987 (age 33)
St. George, Utah, U.S.